diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 3b8f69d7b..2f2e6f1a8 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -8418,6 +8418,14 @@ BattleScript_ProtosynthesisActivates::
 	waitmessage B_WAIT_TIME_MED
 	end3
 
+BattleScript_QuarkDriveActivates::
+	call BattleScript_AbilityPopUp
+	printstring STRINGID_ELECTRICTERRAINACTIVATEDABILITY
+	waitmessage B_WAIT_TIME_MED
+	printstring STRINGID_STATWASHEIGHTENED
+	waitmessage B_WAIT_TIME_MED
+	end3
+
 BattleScript_AttackWeakenedByStrongWinds::
 	pause B_WAIT_TIME_SHORT
 	printstring STRINGID_ATTACKWEAKENEDBSTRONGWINDS
diff --git a/include/battle_scripts.h b/include/battle_scripts.h
index c614e4b67..519c72fc4 100644
--- a/include/battle_scripts.h
+++ b/include/battle_scripts.h
@@ -441,6 +441,7 @@ extern const u8 BattleScript_WindRiderActivatesMoveEnd[];
 extern const u8 BattleScript_WindPowerActivates[];
 extern const u8 BattleScript_WindPowerActivatesEnd2[];
 extern const u8 BattleScript_ProtosynthesisActivates[];
+extern const u8 BattleScript_QuarkDriveActivates[];
 
 // zmoves
 extern const u8 BattleScript_ZMoveActivateDamaging[];
diff --git a/include/constants/battle_string_ids.h b/include/constants/battle_string_ids.h
index d4525572f..9606c5f59 100644
--- a/include/constants/battle_string_ids.h
+++ b/include/constants/battle_string_ids.h
@@ -633,8 +633,9 @@
 #define STRINGID_BEINGHITCHARGEDPKMNWITHPOWER         631
 #define STRINGID_SUNLIGHTACTIVATEDABILITY             632
 #define STRINGID_STATWASHEIGHTENED                    633
+#define STRINGID_ELECTRICTERRAINACTIVATEDABILITY      634
 
-#define BATTLESTRINGS_COUNT                           634
+#define BATTLESTRINGS_COUNT                           635
 
 // This is the string id that gBattleStringsTable starts with.
 // String ids before this (e.g. STRINGID_INTROMSG) are not in the table,
diff --git a/src/battle_main.c b/src/battle_main.c
index f78822247..42de8ac3a 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -4506,6 +4506,8 @@ u32 GetBattlerTotalSpeedStat(u8 battlerId)
         speed /= 2;
     else if (ability == ABILITY_PROTOSYNTHESIS && gBattleWeather & B_WEATHER_SUN && highestStat == STAT_SPEED)
         speed = (speed * 150) / 100;
+    else if (ability == ABILITY_QUARK_DRIVE && gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN && highestStat == STAT_SPEED)
+        speed = (speed * 150) / 100;
 
     // stat stages
     speed *= gStatStageRatios[gBattleMons[battlerId].statStages[STAT_SPEED]][0];
diff --git a/src/battle_message.c b/src/battle_message.c
index e8af7d625..00275fa45 100644
--- a/src/battle_message.c
+++ b/src/battle_message.c
@@ -760,11 +760,13 @@ static const u8 sText_AttackerHealedItsBurn[] = _("{B_ATK_NAME_WITH_PREFIX} heal
 static const u8 sText_AttackerMeltedTheIce[] = _("{B_ATK_NAME_WITH_PREFIX} melted the ice with\nits fiery determination!");
 static const u8 sText_TargetToughedItOut[] = _("{B_DEF_NAME_WITH_PREFIX} toughed it out\nto show you its best side!");
 static const u8 sText_BeingHitChargedPkmnWithPower[] = _("Being hit by {B_CURRENT_MOVE}\ncharged {B_ATK_NAME_WITH_PREFIX} with power!");
-static const u8 sText_SunlightActivatedAbility[] = _("The harsh sunlight activated\n{B_DEF_NAME_WITH_PREFIX}'s {B_DEF_ABILITY}!");
-static const u8 sText_StatWasHeightened[] = _("{B_DEF_NAME_WITH_PREFIX}'s {B_BUFF1} was heightened!");
+static const u8 sText_SunlightActivatedAbility[] = _("The harsh sunlight activated\n{B_ATK_NAME_WITH_PREFIX}'s {B_ATK_ABILITY}!");
+static const u8 sText_StatWasHeightened[] = _("{B_ATK_NAME_WITH_PREFIX}'s {B_BUFF1} was heightened!");
+static const u8 sText_ElectricTerrainActivatedAbility[] = _("The Electric Terrain activated\n{B_ATK_NAME_WITH_PREFIX}'s {B_ATK_ABILITY}!");
 
 const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
 {
+    [STRINGID_ELECTRICTERRAINACTIVATEDABILITY - BATTLESTRINGS_TABLE_START] = sText_ElectricTerrainActivatedAbility,
     [STRINGID_STATWASHEIGHTENED - BATTLESTRINGS_TABLE_START] = sText_StatWasHeightened,
     [STRINGID_SUNLIGHTACTIVATEDABILITY - BATTLESTRINGS_TABLE_START] = sText_SunlightActivatedAbility,
     [STRINGID_BEINGHITCHARGEDPKMNWITHPOWER - BATTLESTRINGS_TABLE_START] = sText_BeingHitChargedPkmnWithPower,
diff --git a/src/battle_util.c b/src/battle_util.c
index 13c581730..aa00f1df7 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -4892,6 +4892,15 @@ u8 AbilityBattleEffects(u8 caseID, u8 battler, u16 ability, u8 special, u16 move
                 effect++;
             }
             break;
+        case ABILITY_QUARK_DRIVE:
+            if (!gSpecialStatuses[battler].switchInAbilityDone && gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN)
+            {
+                gSpecialStatuses[battler].switchInAbilityDone = TRUE;
+                PREPARE_STAT_BUFFER(gBattleTextBuff1, GetHighestStatId(battler));
+                BattleScriptPushCursorAndCallback(BattleScript_QuarkDriveActivates);
+                effect++;
+            }
+            break;
 #if B_WEATHER_FORMS < GEN_5
         default:
             if (gBattleMons[battler].species == SPECIES_CHERRIM)
@@ -8767,6 +8776,10 @@ static u32 CalcMoveBasePowerAfterModifiers(u16 move, u8 battlerAtk, u8 battlerDe
         if (gBattleWeather & B_WEATHER_SUN && WEATHER_HAS_EFFECT && (atkHighestStat == STAT_ATK || atkHighestStat == STAT_SPATK))
             MulModifier(&modifier, UQ_4_12(1.3));
         break;
+    case ABILITY_QUARK_DRIVE:
+        if (gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN && (atkHighestStat == STAT_ATK || atkHighestStat == STAT_SPATK))
+            MulModifier(&modifier, UQ_4_12(1.3));
+        break;
     }
 
     // field abilities
@@ -8828,6 +8841,10 @@ static u32 CalcMoveBasePowerAfterModifiers(u16 move, u8 battlerAtk, u8 battlerDe
         if (gBattleWeather & B_WEATHER_SUN && WEATHER_HAS_EFFECT && (defHighestStat == STAT_DEF || defHighestStat == STAT_SPDEF))
             MulModifier(&modifier, UQ_4_12(0.3));
         break;
+    case ABILITY_QUARK_DRIVE:
+        if (gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN && (defHighestStat == STAT_DEF || defHighestStat == STAT_SPDEF))
+            MulModifier(&modifier, UQ_4_12(0.3));
+        break;
     }
 
     holdEffectAtk = GetBattlerHoldEffect(battlerAtk, TRUE);