diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 15ebaf7ec..438159350 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -7960,9 +7960,10 @@ BattleScript_DoTurnDmgEnd:
 	end2
 
 BattleScript_PoisonHealActivates::
+	copybyte gBattlerAbility, gBattlerAttacker
+	call BattleScript_AbilityPopUp
 	printstring STRINGID_POISONHEALHPUP
 	waitmessage B_WAIT_TIME_LONG
-	recordability BS_ATTACKER
 	statusanimation BS_ATTACKER
 	orword gHitMarker, HITMARKER_IGNORE_SUBSTITUTE | HITMARKER_PASSIVE_DAMAGE
 	healthbarupdate BS_ATTACKER
diff --git a/include/config/battle.h b/include/config/battle.h
index aee79daee..6f09b8ebf 100644
--- a/include/config/battle.h
+++ b/include/config/battle.h
@@ -126,6 +126,7 @@
 #define B_ABSORBING_ABILITY_STRING  GEN_LATEST // In Gen5+, the abilities that absorb moves of a certain type use a generic string for stat increases and decreases.
 #define B_LEAF_GUARD_PREVENTS_REST  GEN_LATEST // In Gen5+, Leaf Guard prevents the use of Rest in harsh sunlight.
 #define B_SNOW_WARNING              GEN_LATEST // In Gen9+, Snow Warning will summon snow instead of hail.
+#define B_TRANSISTOR                GEN_LATEST // In Gen9+, Transistor will only boost Electric-type moves by 1.3x as opposed to 1.5x.
 
 // Item settings
 #define B_HP_BERRIES                GEN_LATEST // In Gen4+, berries which restore hp activate immediately after HP drops to half. In Gen3, the effect occurs at the end of the turn.
diff --git a/src/battle_util.c b/src/battle_util.c
index 887f0e03b..4ff2b37fc 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -8964,7 +8964,11 @@ static inline u32 CalcMoveBasePowerAfterModifiers(u32 move, u32 battlerAtk, u32
         break;
     case ABILITY_TRANSISTOR:
         if (moveType == TYPE_ELECTRIC)
+        #if B_TRANSISTOR >= GEN_9
+            modifier = uq4_12_multiply(modifier, UQ_4_12(5325 / 4096));
+        #else
             modifier = uq4_12_multiply(modifier, UQ_4_12(1.5));
+        #endif
         break;
     case ABILITY_DRAGONS_MAW:
         if (moveType == TYPE_DRAGON)
diff --git a/test/battle/ability/defeatist.c b/test/battle/ability/defeatist.c
new file mode 100644
index 000000000..820c7da35
--- /dev/null
+++ b/test/battle/ability/defeatist.c
@@ -0,0 +1,46 @@
+#include "global.h"
+#include "test/battle.h"
+
+ASSUMPTIONS
+{
+    ASSUME(gBattleMoves[MOVE_TACKLE].split == SPLIT_PHYSICAL);
+    ASSUME(gBattleMoves[MOVE_ECHOED_VOICE].split == SPLIT_SPECIAL);
+}
+
+SINGLE_BATTLE_TEST("Defeatist halves Attack when HP <= 50%", s16 damage)
+{
+    u32 hp;
+    PARAMETRIZE { hp = 400; }
+    PARAMETRIZE { hp = 200; }
+    GIVEN {
+        PLAYER(SPECIES_ARCHEN) { Ability(ABILITY_DEFEATIST); HP(hp), MaxHP(400);}
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_TACKLE); MOVE(opponent, MOVE_CELEBRATE); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_TACKLE, player);
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_CELEBRATE, opponent);
+    } FINALLY {
+        EXPECT_MUL_EQ(results[0].damage, Q_4_12(0.5), results[1].damage);
+    }
+}
+
+SINGLE_BATTLE_TEST("Defeatist halves Special Attack when HP <= 50%", s16 damage)
+{
+    u32 hp;
+    PARAMETRIZE { hp = 400; }
+    PARAMETRIZE { hp = 200; }
+    GIVEN {
+        PLAYER(SPECIES_ARCHEN) { Ability(ABILITY_DEFEATIST); HP(hp), MaxHP(400);}
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_ECHOED_VOICE); MOVE(opponent, MOVE_CELEBRATE); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_ECHOED_VOICE, player);
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_CELEBRATE, opponent);
+    } FINALLY {
+        EXPECT_MUL_EQ(results[0].damage, Q_4_12(0.5), results[1].damage);
+    }
+}
diff --git a/test/battle/ability/dragons_maw.c b/test/battle/ability/dragons_maw.c
new file mode 100644
index 000000000..af633d81d
--- /dev/null
+++ b/test/battle/ability/dragons_maw.c
@@ -0,0 +1,33 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Dragon's Maw increases Dragon-type move damage", s16 damage)
+{
+    u32 move;
+    u16 ability;
+
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_DRAGONS_MAW; }
+    PARAMETRIZE { move = MOVE_DRAGON_CLAW; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_DRAGON_CLAW; ability = ABILITY_DRAGONS_MAW; }
+    PARAMETRIZE { move = MOVE_DRAGON_BREATH; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_DRAGON_BREATH; ability = ABILITY_DRAGONS_MAW; }
+
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_TACKLE].type != TYPE_DRAGON);
+        ASSUME(gBattleMoves[MOVE_DRAGON_CLAW].type == TYPE_DRAGON);
+        ASSUME(gBattleMoves[MOVE_DRAGON_BREATH].type == TYPE_DRAGON);
+        ASSUME(gBattleMoves[MOVE_DRAGON_CLAW].split == SPLIT_PHYSICAL);
+        ASSUME(gBattleMoves[MOVE_DRAGON_BREATH].split == SPLIT_SPECIAL);
+        PLAYER(SPECIES_REGIDRAGO) { Ability(ability); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, move); }
+    } SCENE {
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+    } FINALLY {
+        EXPECT_EQ(results[0].damage, results[1].damage); // Tackle should be unaffected
+        EXPECT_MUL_EQ(results[2].damage, Q_4_12(1.5), results[3].damage); // Dragon Claw should be affected
+        EXPECT_MUL_EQ(results[4].damage, Q_4_12(1.5), results[5].damage); // Dragon Breath should be affected
+    }
+}
diff --git a/test/battle/ability/earth_eater.c b/test/battle/ability/earth_eater.c
new file mode 100644
index 000000000..a0ba2b54d
--- /dev/null
+++ b/test/battle/ability/earth_eater.c
@@ -0,0 +1,46 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Earth Eater heals 25% when hit by ground type moves")
+{
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_MUD_SLAP].type == TYPE_GROUND);
+        PLAYER(SPECIES_WOBBUFFET) { Ability(ABILITY_EARTH_EATER); HP(1); MaxHP(100); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_MUD_SLAP); }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_EARTH_EATER);
+        HP_BAR(player, damage: -25);
+        MESSAGE("Wobbuffet restored HP using its Earth Eater!");
+    }
+}
+
+SINGLE_BATTLE_TEST("Earth Eater does not activate if protected")
+{
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_MUD_SLAP].type == TYPE_GROUND);
+        PLAYER(SPECIES_WOBBUFFET) { Ability(ABILITY_EARTH_EATER); HP(1); MaxHP(100); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_PROTECT); MOVE(opponent, MOVE_MUD_SLAP); }
+    } SCENE {
+        NONE_OF { ABILITY_POPUP(player, ABILITY_EARTH_EATER); HP_BAR(player); MESSAGE("Wobbuffet restored HP using its Earth Eater!"); }
+    }
+}
+
+SINGLE_BATTLE_TEST("Earth Eater activates on status moves")
+{
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_SAND_ATTACK].type == TYPE_GROUND);
+        ASSUME(gBattleMoves[MOVE_SAND_ATTACK].split == SPLIT_STATUS);
+        PLAYER(SPECIES_WOBBUFFET) { Ability(ABILITY_EARTH_EATER); HP(1); MaxHP(100); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_SAND_ATTACK); }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_EARTH_EATER);
+        HP_BAR(player, damage: -25);
+        MESSAGE("Wobbuffet restored HP using its Earth Eater!");
+    }
+}
diff --git a/test/battle/ability/gale_wings.c b/test/battle/ability/gale_wings.c
new file mode 100644
index 000000000..d44bfb4d4
--- /dev/null
+++ b/test/battle/ability/gale_wings.c
@@ -0,0 +1,53 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Gale Wings only grants priority at full HP")
+{
+    u16 hp;
+    PARAMETRIZE { hp = 100; }
+    PARAMETRIZE { hp = 99; }
+    GIVEN {
+        ASSUME(B_GALE_WINGS >= GEN_7);
+        ASSUME(gBattleMoves[MOVE_AERIAL_ACE].type == TYPE_FLYING);
+        PLAYER(SPECIES_TALONFLAME) { Ability(ABILITY_GALE_WINGS); HP(hp); MaxHP(100); Speed(1);}
+        OPPONENT(SPECIES_WOBBUFFET) { Speed(100);};
+    } WHEN {
+        TURN { MOVE(player, MOVE_AERIAL_ACE); }
+    } SCENE {
+        if (hp == 100) {
+            MESSAGE("Talonflame used Aerial Ace!");
+            MESSAGE("Foe Wobbuffet used Celebrate!");
+        }
+        else {
+            MESSAGE("Foe Wobbuffet used Celebrate!");
+            MESSAGE("Talonflame used Aerial Ace!");
+        }
+    }
+}
+
+SINGLE_BATTLE_TEST("Gale Wings only grants priority to Flying-type moves")
+{
+    u32 move;
+    PARAMETRIZE { move = MOVE_AERIAL_ACE; }
+    PARAMETRIZE { move = MOVE_FLARE_BLITZ; }
+    GIVEN {
+        ASSUME(B_GALE_WINGS >= GEN_7);
+        ASSUME(gBattleMoves[MOVE_AERIAL_ACE].type == TYPE_FLYING);
+        ASSUME(gBattleMoves[MOVE_FLARE_BLITZ].type == TYPE_FIRE);
+        PLAYER(SPECIES_TALONFLAME) { Ability(ABILITY_GALE_WINGS); HP(100); MaxHP(100); Speed(1);}
+        OPPONENT(SPECIES_WOBBUFFET) { Speed(100);};
+    } WHEN {
+        TURN { MOVE(player, move); }
+    } SCENE {
+        if (move == MOVE_AERIAL_ACE) {
+            MESSAGE("Talonflame used Aerial Ace!");
+            MESSAGE("Foe Wobbuffet used Celebrate!");
+        }
+        else {
+            MESSAGE("Foe Wobbuffet used Celebrate!");
+            MESSAGE("Talonflame used Flare Blitz!");
+        }
+    }
+}
+
+TO_DO_BATTLE_TEST("Gale Wings doesn't increase priority of Flying-type Hidden Power, Natural Gift, Judgment or Tera Blast");
diff --git a/test/battle/ability/poison_heal.c b/test/battle/ability/poison_heal.c
new file mode 100644
index 000000000..2ee7620c6
--- /dev/null
+++ b/test/battle/ability/poison_heal.c
@@ -0,0 +1,77 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Poison Heal heals from (Toxic) Poison damage")
+{
+    u8 status;
+    PARAMETRIZE { status = STATUS1_POISON; }
+    PARAMETRIZE { status = STATUS1_TOXIC_POISON; }
+
+    GIVEN {
+        PLAYER(SPECIES_SHROOMISH) { Ability(ABILITY_POISON_HEAL); Status1(status);  HP(1), MaxHP(400); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_CELEBRATE); }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_POISON_HEAL);
+        MESSAGE("The poisoning healed Shroomish a little bit!");
+        HP_BAR(player, damage: -50);
+    }
+}
+
+SINGLE_BATTLE_TEST("Poison Heal heals from Toxic Poison damage are constant")
+{
+    s16 turnOneHit;
+    s16 turnTwoHit;
+
+    GIVEN {
+        PLAYER(SPECIES_SHROOMISH) { Ability(ABILITY_POISON_HEAL); Status1(STATUS1_TOXIC_POISON);  HP(1), MaxHP(400); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { }
+        TURN { }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_POISON_HEAL);
+        MESSAGE("The poisoning healed Shroomish a little bit!");
+        HP_BAR(player, captureDamage: &turnOneHit);
+
+        ABILITY_POPUP(player, ABILITY_POISON_HEAL);
+        MESSAGE("The poisoning healed Shroomish a little bit!");
+        HP_BAR(player, captureDamage: &turnTwoHit);
+    } THEN {
+        EXPECT_EQ(turnOneHit, turnTwoHit);
+    }
+}
+
+SINGLE_BATTLE_TEST("Poison Heal does not heal or cause damage when under Heal Block")
+{
+    GIVEN {
+        PLAYER(SPECIES_SHROOMISH) { Ability(ABILITY_POISON_HEAL); Status1(STATUS1_POISON);  HP(1), MaxHP(400); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_HEAL_BLOCK); }
+    } SCENE {
+        NONE_OF {
+            ABILITY_POPUP(player, ABILITY_POISON_HEAL);
+            MESSAGE("The poisoning healed Shroomish a little bit!");
+            HP_BAR(player, damage: -50);
+        }
+    }
+}
+
+SINGLE_BATTLE_TEST("Poison Heal activates before Toxic Orb")
+{
+    GIVEN {
+        PLAYER(SPECIES_SHROOMISH) { Ability(ABILITY_POISON_HEAL); Item(ITEM_TOXIC_ORB);  HP(1), MaxHP(400); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_CELEBRATE); }
+    } SCENE {
+        NONE_OF {
+            ABILITY_POPUP(player, ABILITY_POISON_HEAL);
+            MESSAGE("The poisoning healed Shroomish a little bit!");
+            HP_BAR(player, damage: -50);
+            HP_BAR(player, damage: 50);
+        }
+    }
+}
diff --git a/test/battle/ability/rocky_payload.c b/test/battle/ability/rocky_payload.c
new file mode 100644
index 000000000..498b09c9d
--- /dev/null
+++ b/test/battle/ability/rocky_payload.c
@@ -0,0 +1,33 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Rocky Payload increases Rock-type move damage", s16 damage)
+{
+    u32 move;
+    u16 ability;
+
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_BIG_PECKS; }
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_ROCKY_PAYLOAD; }
+    PARAMETRIZE { move = MOVE_ROCK_THROW; ability = ABILITY_BIG_PECKS; }
+    PARAMETRIZE { move = MOVE_ROCK_THROW; ability = ABILITY_ROCKY_PAYLOAD; }
+    PARAMETRIZE { move = MOVE_POWER_GEM; ability = ABILITY_BIG_PECKS; }
+    PARAMETRIZE { move = MOVE_POWER_GEM; ability = ABILITY_ROCKY_PAYLOAD; }
+
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_TACKLE].type != TYPE_ROCK);
+        ASSUME(gBattleMoves[MOVE_ROCK_THROW].type == TYPE_ROCK);
+        ASSUME(gBattleMoves[MOVE_POWER_GEM].type == TYPE_ROCK);
+        ASSUME(gBattleMoves[MOVE_ROCK_THROW].split == SPLIT_PHYSICAL);
+        ASSUME(gBattleMoves[MOVE_POWER_GEM].split == SPLIT_SPECIAL);
+        PLAYER(SPECIES_WOBBUFFET) { Ability(ability); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, move); }
+    } SCENE {
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+    } FINALLY {
+        EXPECT_EQ(results[0].damage, results[1].damage); // Tackle should be unaffected
+        EXPECT_MUL_EQ(results[2].damage, Q_4_12(1.5), results[3].damage); // Rock Throw should be affected
+        EXPECT_MUL_EQ(results[4].damage, Q_4_12(1.5), results[5].damage); // Power Gem should be affected
+    }
+}
diff --git a/test/battle/ability/sap_sipper.c b/test/battle/ability/sap_sipper.c
new file mode 100644
index 000000000..89ec42249
--- /dev/null
+++ b/test/battle/ability/sap_sipper.c
@@ -0,0 +1,55 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Sap Sipper negates damage from Grass-type moves")
+{
+    GIVEN {
+        PLAYER(SPECIES_MARILL) { Ability(ABILITY_SAP_SIPPER); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_VINE_WHIP); }
+    } SCENE {
+        NONE_OF { HP_BAR(player); }
+    }
+}
+
+SINGLE_BATTLE_TEST("Sap Sipper negates effects from Grass-type moves")
+{
+    GIVEN {
+        PLAYER(SPECIES_MARILL) { Ability(ABILITY_SAP_SIPPER); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_SPORE); }
+    } SCENE {
+        NONE_OF { ANIMATION(ANIM_TYPE_STATUS, B_ANIM_STATUS_SLP, player); }
+        NONE_OF { STATUS_ICON(player, sleep: TRUE); }
+    }
+}
+
+SINGLE_BATTLE_TEST("Sap Sipper increases Attack by one stage when hit by a Grass-type move")
+{
+    GIVEN {
+        PLAYER(SPECIES_MARILL) { Ability(ABILITY_SAP_SIPPER); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_VINE_WHIP); }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_SAP_SIPPER);
+        ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_STATS_CHANGE, player);
+        MESSAGE("Marill's Attack rose!");
+    }
+}
+
+SINGLE_BATTLE_TEST("Sap Sipper does not increase Attack if already maxed")
+{
+    GIVEN {
+        PLAYER(SPECIES_MARILL) { Ability(ABILITY_SAP_SIPPER); }
+        OPPONENT(SPECIES_WOBBUFFET) { Speed(1); }
+    } WHEN {
+        TURN { MOVE(player, MOVE_BELLY_DRUM); MOVE(opponent, MOVE_VINE_WHIP); }
+    } SCENE {
+        ABILITY_POPUP(player, ABILITY_SAP_SIPPER);
+        NONE_OF { ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_STATS_CHANGE, player); }
+        NONE_OF { MESSAGE("Marill's Attack rose!"); }
+    }
+}
diff --git a/test/battle/ability/steelworker.c b/test/battle/ability/steelworker.c
new file mode 100644
index 000000000..bf7d0ca9c
--- /dev/null
+++ b/test/battle/ability/steelworker.c
@@ -0,0 +1,33 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Steelworker increases Steel-type move damage", s16 damage)
+{
+    u32 move;
+    u16 ability;
+
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_STEELWORKER; }
+    PARAMETRIZE { move = MOVE_ANCHOR_SHOT; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_ANCHOR_SHOT; ability = ABILITY_STEELWORKER; }
+    PARAMETRIZE { move = MOVE_FLASH_CANNON; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_FLASH_CANNON; ability = ABILITY_STEELWORKER; }
+
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_TACKLE].type != TYPE_STEEL);
+        ASSUME(gBattleMoves[MOVE_ANCHOR_SHOT].type == TYPE_STEEL);
+        ASSUME(gBattleMoves[MOVE_FLASH_CANNON].type == TYPE_STEEL);
+        ASSUME(gBattleMoves[MOVE_ANCHOR_SHOT].split == SPLIT_PHYSICAL);
+        ASSUME(gBattleMoves[MOVE_FLASH_CANNON].split == SPLIT_SPECIAL);
+        PLAYER(SPECIES_DHELMISE) { Ability(ability); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, move); }
+    } SCENE {
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+    } FINALLY {
+        EXPECT_EQ(results[0].damage, results[1].damage); // Tackle should be unaffected
+        EXPECT_MUL_EQ(results[2].damage, Q_4_12(1.5), results[3].damage); // Anchor Shot should be affected
+        EXPECT_MUL_EQ(results[4].damage, Q_4_12(1.5), results[5].damage); // Flash Cannon should be affected
+    }
+}
diff --git a/test/battle/ability/transistor.c b/test/battle/ability/transistor.c
new file mode 100644
index 000000000..3da12c832
--- /dev/null
+++ b/test/battle/ability/transistor.c
@@ -0,0 +1,38 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Transistor increases Electric-type move damage", s16 damage)
+{
+    u32 move;
+    u16 ability;
+
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_TACKLE; ability = ABILITY_TRANSISTOR; }
+    PARAMETRIZE { move = MOVE_WILD_CHARGE; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_WILD_CHARGE; ability = ABILITY_TRANSISTOR; }
+    PARAMETRIZE { move = MOVE_THUNDER_SHOCK; ability = ABILITY_KLUTZ; }
+    PARAMETRIZE { move = MOVE_THUNDER_SHOCK; ability = ABILITY_TRANSISTOR; }
+
+    GIVEN {
+        ASSUME(gBattleMoves[MOVE_TACKLE].type != TYPE_ELECTRIC);
+        ASSUME(gBattleMoves[MOVE_WILD_CHARGE].type == TYPE_ELECTRIC);
+        ASSUME(gBattleMoves[MOVE_THUNDER_SHOCK].type == TYPE_ELECTRIC);
+        ASSUME(gBattleMoves[MOVE_WILD_CHARGE].split == SPLIT_PHYSICAL);
+        ASSUME(gBattleMoves[MOVE_THUNDER_SHOCK].split == SPLIT_SPECIAL);
+        PLAYER(SPECIES_REGIELEKI) { Ability(ability); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, move); }
+    } SCENE {
+        HP_BAR(opponent, captureDamage: &results[i].damage);
+    } FINALLY {
+        EXPECT_EQ(results[0].damage, results[1].damage); // Tackle should be unaffected
+    #if B_TRANSISTOR >= GEN_9
+        EXPECT_MUL_EQ(results[2].damage, Q_4_12(5325 / 4096), results[3].damage); // Wild Charge should be affected
+        EXPECT_MUL_EQ(results[4].damage, Q_4_12(5325 / 4096), results[5].damage); // Thunder Shock should be affected
+    #else
+        EXPECT_MUL_EQ(results[2].damage, Q_4_12(1.5), results[3].damage); // Wild Charge should be affected
+        EXPECT_MUL_EQ(results[4].damage, Q_4_12(1.5), results[5].damage); // Thunder Shock should be affected
+    #endif
+    }
+}