diff --git a/data/conditions.ts b/data/conditions.ts
index 0c84e3a5fc42..419ec9738f20 100644
--- a/data/conditions.ts
+++ b/data/conditions.ts
@@ -653,221 +653,6 @@ export const Conditions: import('../sim/dex-conditions').ConditionDataTable = {
 			this.add('-weather', 'none');
 		},
 	},
-	locusts: {
-		name: 'Locusts',
-		effectType: 'Weather',
-		duration: 5,
-		onModifyAtkPriority: 5,
-		onModifyAtk(atk, attacker, defender, move) {
-			if (move.type === 'Bug' && attacker.hp <= attacker.maxhp / 3) {
-				this.debug('Swarm boost');
-				return this.chainModify(1.5);
-			}
-		},
-		onModifySpAPriority: 5,
-		onModifySpA(atk, attacker, defender, move) {
-			if (move.type === 'Bug' && attacker.hp <= attacker.maxhp / 3) {
-				this.debug('Swarm boost');
-				return this.chainModify(1.5);
-			}
-		},
-		onFieldStart(field, source, effect) {
-			if (effect?.effectType === 'Ability') {
-				this.add('-weather', 'Locusts', '[from] ability: ' + effect.name, '[of] ' + source);
-			} else {
-				this.add('-weather', 'Locusts');
-			}
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'Locusts', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onWeather(target) {
-			this.damage(target.baseMaxhp / 16);
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	acidrain: {
-		name: 'AcidRain',
-		effectType: 'Weather',
-		duration: 5,
-		onSourceDamagingHit(damage, target, source, move) {
-			// Despite not being a secondary, Shield Dust / Covert Cloak block Toxic Chain's effect
-			if (target.hasAbility('shielddust') || target.hasItem('covertcloak')) return;
-			if (this.randomChance(3, 10)) {
-				target.trySetStatus('tox', source);
-			}
-		},
-		onFieldStart(field, source, effect) {
-			if (effect?.effectType === 'Ability') {
-				this.add('-weather', 'AcidRain', '[from] ability: ' + effect.name, '[of] ' + source);
-			} else {
-				this.add('-weather', 'AcidRain');
-			}
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'AcidRain', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onWeather(target) {
-			this.damage(target.baseMaxhp / 16);
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	twilightzone: {
-		name: 'TwilightZone',
-		effectType: 'Weather',
-		duration: 5,
-		onFieldStart(field, source, effect) {
-			if (effect?.effectType === 'Ability') {
-				this.add('-weather', 'TwilightZone', '[from] ability: ' + effect.name, '[of] ' + source);
-			} else {
-				this.add('-weather', 'TwilightZone');
-			}
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'TwilightZone', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onBasePower(basePower, attacker, defender, move) {
-			let fallen = Math.min(attacker.side.totalFainted, 3);
-			if (attacker.hasType("Ghost")) {
-				fallen = 3;
-			}
-			if (fallen) {
-				const powMod = [4096, 4506, 4915, 5325, 5734, 6144];
-				return this.chainModify([powMod[fallen], 4096]);
-			}
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	loveintheair: {
-		name: 'LoveInTheAir',
-		effectType: 'Weather',
-		duration: 5,
-		onSetStatus(status, target, source, effect) {
-			if (!target.isGrounded() || target.isSemiInvulnerable()) return;
-			if (effect && ((effect as Move).status || effect.id === 'yawn')) {
-				this.add('-activate', target, 'move: Misty Terrain');
-			}
-			return false;
-		},
-		onTryAddVolatile(status, target, source, effect) {
-			if (!target.isGrounded() || target.isSemiInvulnerable()) return;
-			if (status.id === 'confusion') {
-				if (effect.effectType === 'Move' && !effect.secondaries) this.add('-activate', target, 'move: Misty Terrain');
-				return null;
-			}
-		},
-		onAccuracy(accuracy, target, source, move) {
-			if (move.type === "Fairy") {
-				return true;
-			}
-		},
-		onFieldStart(field, source, effect) {
-			if (effect?.effectType === 'Ability') {
-				this.add('-weather', 'LoveInTheAir', '[from] ability: ' + effect.name, '[of] ' + source);
-			} else {
-				this.add('-weather', 'LoveInTheAir');
-			}
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'LoveInTheAir', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	pollen: {
-		name: 'Pollen',
-		effectType: 'Weather',
-		duration: 5,
-		onBasePower(basePower, attacker, defender, move) {
-			if (move.type === 'Grass') {
-				return this.chainModify([5325, 4096]);
-			}
-		},
-		onWeather(target) {
-			this.heal(target.baseMaxhp / 16, target, target);
-		},
-		onFieldStart(field, source, effect) {
-			if (effect?.effectType === 'Ability') {
-				this.add('-weather', 'Pollen', '[from] ability: ' + effect.name, '[of] ' + source);
-			} else {
-				this.add('-weather', 'Pollen');
-			}
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'Pollen', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onAccuracy(accuracy, target, source, move) {
-			if (move.flags["powder"]) {
-				return true;
-			}
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	stellarstorm: {
-		name: 'StellarStorm',
-		effectType: 'Weather',
-		duration: 5,
-		onEffectivenessPriority: -1,
-		onEffectiveness(typeMod, target, type, move) {
-			if (target?.terastallized) {
-				this.add('-fieldactivate', 'Stellar Storm');
-				return 1;
-			}
-		},
-		onFieldStart(field, source, effect) {
-			this.add('-weather', 'StellarStorm', '[from] ability: ' + effect.name, '[of] ' + source);
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'StellarStorm', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
-	darkness: {
-		name: 'Darkness',
-		effectType: 'Weather',
-		duration: 5,
-		onModifyAccuracyPriority: 9,
-		onModifyAccuracy(accuracy, target, source, move) {
-			if (!source.hasType('Dark')) {
-				if (typeof accuracy !== 'number') return;
-				return this.chainModify([3277, 4096]);
-			}
-		},
-		onFieldStart(field, source, effect) {
-			this.add('-weather', 'Darkness', '[from] ability: ' + effect.name, '[of] ' + source);
-		},
-		onFieldResidualOrder: 1,
-		onFieldResidual() {
-			this.add('-weather', 'Darkness', '[upkeep]');
-			this.eachEvent('Weather');
-		},
-		onFieldEnd() {
-			this.add('-weather', 'none');
-		},
-	},
 	sandstorm: {
 		name: 'Sandstorm',
 		effectType: 'Weather',
diff --git a/data/text/abilities.ts b/data/text/abilities.ts
index dafe0c9b8519..c2ea84258dcf 100644
--- a/data/text/abilities.ts
+++ b/data/text/abilities.ts
@@ -2494,8 +2494,8 @@ export const AbilitiesText: {[id: IDEntry]: AbilityText} = {
 	},
 	onslaughtcore: {
 		name: "Onslaught Core",
-		desc: "User uses Confusion on opposite Pokemon on switch in.",
-		shortDesc: "User uses Confusion on opposite Pokemon on switch in.",
+		desc: "User uses Confusion (30bp, 25% recoil) on opposite Pokemon on switch in.",
+		shortDesc: "User uses Confusion (30bp, 25% recoil) on opposite Pokemon on switch in.",
 	},
 	barriercore: {
 		name: "Barrier Core",
@@ -2533,10 +2533,7 @@ export const AbilitiesText: {[id: IDEntry]: AbilityText} = {
 	},
 	serenegracidea: {
 		name: "Serene Grace",
-		desc: "This Pokemon's moves have their secondary effect chance doubled. This effect stacks with the Rainbow effect, except for secondary effects that cause the target to flinch.",
+		desc: "This Pokemon's moves have their secondary effect chance 2.5x. This effect stacks with the Rainbow effect, except for secondary effects that cause the target to flinch.",
 		shortDesc: "This Pokemon's moves have their secondary effect chance 2.5x.",
-		gen4: {
-			desc: "This Pokemon's moves have their secondary effect chance 2.5x.",
-		},
 	},
 };
diff --git a/data/text/default.ts b/data/text/default.ts
index 6f840bd1acfa..701397d1adff 100644
--- a/data/text/default.ts
+++ b/data/text/default.ts
@@ -326,36 +326,6 @@ export const DefaultText: {[id: IDEntry]: DefaultText} = {
 		block: "  The mysterious strong winds blow on regardless!",
 	},
 
-	// new ones
-
-	locusts: {
-		weatherName: "Locusts",
-		start: "  A swarm started!",
-		end: "  The swarm subsided.",
-		upkeep: "  (The swarm is raging.)",
-		damage: "  [POKEMON] is barraged by the locusts!",
-	},
-	acidrain: {
-		weatherName: "Acid Rain",
-		start: "  An acid rain started!",
-		end: "  The acid rain stopped.",
-		upkeep: "  (Acid Rain continues to fall.)",
-		damage: "  [POKEMON] is corroded by the acid!",
-	},
-	stellarstorm: {
-		weatherName: "Stellar Storm",
-		start: "  The weather turned Stellar!",
-		end: "  The lights have faded.",
-		activate: "  The storm powered up the attack!",
-		upkeep: "  (The storm continues.)",
-	},
-	darkness: {
-		weatherName: "Darkness",
-		start: "  The field went dark!",
-		end: "  The lights are back on!",
-		upkeep: "  (The dark continues.)",
-	},
-
 	// terrain
 	electricterrain: {
 		start: "  An electric current ran across the battlefield!",
diff --git a/data/typechart.ts b/data/typechart.ts
index 73e71ab563ac..4854c3ab5f63 100644
--- a/data/typechart.ts
+++ b/data/typechart.ts
@@ -1,7 +1,6 @@
 export const TypeChart: import('../sim/dex-data').TypeDataTable = {
 	bug: {
 		damageTaken: {
-			locusts: 3,
 			Bug: 0,
 			Dark: 0,
 			Dragon: 0,