diff --git a/config/formats.ts b/config/formats.ts
index 5bf614a994..b2fb884b51 100644
--- a/config/formats.ts
+++ b/config/formats.ts
@@ -4683,7 +4683,7 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		name: "[Gen 6] LC",
 		mod: 'gen6',
 		searchShow: false,
-		ruleset: ['Standard', 'Little Cup'],
+		ruleset: ['Standard', 'Little Cup', 'Pomeg Glitch Clause'],
 		banlist: [
 			'Drifloon', 'Gligar', 'Meditite', 'Misdreavus', 'Murkrow', 'Scyther', 'Sneasel', 'Swirlix', 'Tangela', 'Yanma',
 			'Baton Pass', 'Dragon Rage', 'Sonic Boom', 'Swagger',
@@ -4885,7 +4885,7 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		name: "[Gen 5] LC",
 		mod: 'gen5',
 		searchShow: false,
-		ruleset: ['Standard', 'Little Cup', 'Sleep Moves Clause'],
+		ruleset: ['Standard', 'Little Cup', 'Pomeg Glitch Clause', 'Sleep Moves Clause'],
 		banlist: [
 			'Gligar', 'Meditite', 'Misdreavus', 'Murkrow', 'Scraggy', 'Scyther', 'Sneasel', 'Tangela', 'Vulpix', 'Yanma',
 			'Sand Rush', 'Sand Veil', 'Berry Juice', 'Soul Dew', 'Baton Pass', 'Dragon Rage', 'Sonic Boom', 'Swagger',
@@ -5040,7 +5040,7 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		name: "[Gen 4] LC",
 		mod: 'gen4',
 		searchShow: false,
-		ruleset: ['Standard', 'Little Cup', 'Evasion Abilities Clause', 'Sleep Moves Clause'],
+		ruleset: ['Standard', 'Little Cup', 'Pomeg Glitch Clause', 'Evasion Abilities Clause', 'Sleep Moves Clause'],
 		banlist: [
 			'Meditite', 'Misdreavus', 'Murkrow', 'Scyther', 'Sneasel', 'Tangela', 'Yanma',
 			'Berry Juice', 'Deep Sea Tooth', 'Dragon Rage', 'Sonic Boom', 'Swagger',
@@ -5187,7 +5187,7 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		name: "[Gen 3] Ubers",
 		mod: 'gen3',
 		searchShow: false,
-		ruleset: ['Standard', 'Deoxys Camouflage Clause', 'One Baton Pass Clause'],
+		ruleset: ['Standard', 'Deoxys Camouflage Clause Mod', 'One Baton Pass Clause'],
 		banlist: ['Wobbuffet + Leftovers', 'Wynaut + Leftovers', 'Baton Pass'],
 	},
 	{
@@ -5222,7 +5222,7 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		name: "[Gen 3] LC",
 		mod: 'gen3',
 		searchShow: false,
-		ruleset: ['Standard', 'Little Cup', 'Sleep Moves Clause', 'Accuracy Moves Clause'],
+		ruleset: ['Standard', 'Little Cup', 'Pomeg Glitch Clause', 'Sleep Moves Clause', 'Accuracy Moves Clause'],
 		banlist: ['Chansey', 'Diglett', 'Meditite', 'Omanyte', 'Porygon', 'Scyther', 'Wynaut', 'Zigzagoon', 'Deep Sea Tooth', 'Baton Pass', 'Dragon Rage', 'Sonic Boom', 'Swagger', 'Thunder Wave'],
 	},
 	{
diff --git a/data/rulesets.ts b/data/rulesets.ts
index fbe552ff14..0bb49b3aac 100644
--- a/data/rulesets.ts
+++ b/data/rulesets.ts
@@ -1439,13 +1439,13 @@ export const Rulesets: import('../sim/dex-formats').FormatDataTable = {
 		// Hardcoded in gen1/moves.ts
 		// Can't be disabled (no precedent for how else to handle desyncs)
 	},
-	deoxyscamouflageclause: {
+	deoxyscamouflageclausemod: {
 		effectType: 'Rule',
-		name: 'Deoxys Camouflage Clause',
+		name: 'Deoxys Camouflage Clause Mod',
 		desc: "Reveals the Deoxys forme when it is sent in battle.",
 		// Hardcoded into effect, cannot be disabled.
 		onBegin() {
-			this.add('rule', 'Deoxys Camouflage Clause: Reveals the Deoxys forme when it is sent in battle.');
+			this.add('rule', 'Deoxys Camouflage Clause Mod: Reveals the Deoxys forme when it is sent in battle.');
 		},
 	},
 	freezeclausemod: {
@@ -1839,11 +1839,23 @@ export const Rulesets: import('../sim/dex-formats').FormatDataTable = {
 		desc: "Allows Pokémon who learn Sketch to learn any Gen 8+ move (normally, Sketch is not usable in Gen 8 or Gen 9 Pre-DLC2).",
 		// Implemented in sim/team-validator.ts
 	},
-	mimicglitch: {
+	mimicglitchclause: {
 		effectType: 'ValidatorRule',
-		name: 'Mimic Glitch',
+		name: 'Mimic Glitch Clause',
 		desc: "Allows any Pokemon with access to Assist, Copycat, Metronome, Mimic, or Transform to gain access to almost any other move.",
 		// Implemented in sim/team-validator.ts
+		onBegin() {
+			this.add('rule', 'Mimic Glitch Clause: Pokemon that learn Assist, Copycat, Metronome, Mimic, or Transform can have any move.');
+		},
+	},
+	pomegglitchclause: {
+		effectType: 'ValidatorRule',
+		name: 'Pomeg Glitch Clause',
+		desc: "Allows any Pokémon from Generation 3 at level 5 or higher to have any of its level-up moves. This implementation is allowed only to enable an otherwise legal Pokémon to obtain moves it would not normally have access to at an earlier level.",
+		// Implemented in sim/team-validator.ts
+		onBegin() {
+			this.add('rule', 'Pomeg Glitch Clause: Gen 3 Pokémon at level 5+ can have any of their level-up moves.');
+		},
 	},
 	overflowstatmod: {
 		effectType: 'Rule',
diff --git a/sim/team-validator.ts b/sim/team-validator.ts
index c1ee6cf1a8..90befa2195 100644
--- a/sim/team-validator.ts
+++ b/sim/team-validator.ts
@@ -2652,7 +2652,7 @@ export class TeamValidator {
 						// we're past the required level to learn it
 						// (gen 7 level-up moves can be relearnered at any level)
 						// falls through to LMT check below
-					} else if (level >= 5 && learnedGen === 3 && species.canHatch) {
+					} else if (this.ruleTable.has('pomegglitchclause') && level >= 5 && learnedGen === 3 && species.canHatch) {
 						// Pomeg Glitch
 						learned = `${learnedGen}Epomeg` as MoveSource;
 					} else if (species.gender !== 'N' &&
@@ -2770,7 +2770,7 @@ export class TeamValidator {
 					return null;
 				}
 			}
-			if (ruleTable.has('mimicglitch') && species.gen < 5) {
+			if (ruleTable.has('mimicglitchclause') && species.gen < 5) {
 				// include the Mimic Glitch when checking this mon's learnset
 				const glitchMoves = ['metronome', 'copycat', 'transform', 'mimic', 'assist'];
 				let getGlitch = false;
diff --git a/test/sim/team-validator/breeding.js b/test/sim/team-validator/breeding.js
index 65c202766f..6e9a55ad48 100644
--- a/test/sim/team-validator/breeding.js
+++ b/test/sim/team-validator/breeding.js
@@ -192,6 +192,7 @@ describe('Team Validator', () => {
 	it("should allow previously illegal level up egg moves in Gen 7", () => {
 		team = [
 			{ species: 'smoochum', level: 5, ability: 'hydration', moves: ['powdersnow'], evs: { hp: 1 } },
+			{ species: 'staryu', level: 5, ability: 'illuminate', moves: ['hydropump'], evs: { hp: 1 } },
 		];
 		assert.legalTeam(team, 'gen7lc');
 	});
@@ -200,7 +201,8 @@ describe('Team Validator', () => {
 		team = [
 			{ species: 'zigzagoon', level: 5, ability: 'pickup', moves: ['bellydrum', 'extremespeed'], evs: { hp: 1 } },
 		];
-		assert.legalTeam(team, 'gen3ou');
+		assert.false.legalTeam(team, 'gen3ou');
+		assert.legalTeam(team, 'gen3ou@@@pomegglitchclause');
 	});
 
 	it("should disallow illegal egg move combinations containing past gen universal moves", () => {