diff --git a/config/formats.ts b/config/formats.ts
index 23bbb09d1840..1e7741b3e6db 100644
--- a/config/formats.ts
+++ b/config/formats.ts
@@ -311,7 +311,7 @@ export const Formats: FormatList = [
 			`&bullet; <a href="https://www.smogon.com/forums/threads/3657818/">VGC 2020 Sample Teams</a>`,
 		],
 
-		mod: 'vgc20',
+		mod: 'gen8dlc1',
 		gameType: 'doubles',
 		forcedLevel: 50,
 		teamLength: {
diff --git a/data/mods/gen8dlc1/abilities.ts b/data/mods/gen8dlc1/abilities.ts
new file mode 100644
index 000000000000..206e4b6a85a7
--- /dev/null
+++ b/data/mods/gen8dlc1/abilities.ts
@@ -0,0 +1,30 @@
+export const Abilities: {[k: string]: ModdedAbilityData} = {
+	asoneglastrier: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	asonespectrier: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	chillingneigh: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	curiousmedicine: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	dragonsmaw: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	grimneigh: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	transistor: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+};
diff --git a/data/mods/vgc20/formats-data.ts b/data/mods/gen8dlc1/formats-data.ts
similarity index 100%
rename from data/mods/vgc20/formats-data.ts
rename to data/mods/gen8dlc1/formats-data.ts
diff --git a/data/mods/gen8dlc1/items.ts b/data/mods/gen8dlc1/items.ts
new file mode 100644
index 000000000000..4eb5814d867c
--- /dev/null
+++ b/data/mods/gen8dlc1/items.ts
@@ -0,0 +1,50 @@
+export const Items: {[k: string]: ModdedItemData} = {
+	adamantorb: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	burndrive: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	chilldrive: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	custapberry: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	dousedrive: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	enigmaberry: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	griseousorb: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	jabocaberry: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	lustrousorb: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	rowapberry: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	shockdrive: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	souldew: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+};
diff --git a/data/mods/vgc20/learnsets.ts b/data/mods/gen8dlc1/learnsets.ts
similarity index 100%
rename from data/mods/vgc20/learnsets.ts
rename to data/mods/gen8dlc1/learnsets.ts
diff --git a/data/mods/gen8dlc1/moves.ts b/data/mods/gen8dlc1/moves.ts
new file mode 100644
index 000000000000..0c45c7526e07
--- /dev/null
+++ b/data/mods/gen8dlc1/moves.ts
@@ -0,0 +1,138 @@
+export const Moves: {[k: string]: ModdedMoveData} = {
+	aeroblast: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	astralbarrage: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	coreenforcer: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	crushgrip: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	diamondstorm: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	dragonascent: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	dragonenergy: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	eeriespell: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	fierywrath: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	freezingglare: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	geomancy: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	glaciallance: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	landswrath: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	lovelykiss: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	lunardance: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	lusterpurge: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	magmastorm: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	mindblown: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	mistball: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	naturesmadness: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	oblivionwing: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	originpulse: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	precipiceblades: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	roaroftime: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	sacredfire: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	searingshot: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	shadowforce: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	spacialrend: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	steameruption: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	technoblast: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	thousandarrows: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	thousandwaves: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	thundercage: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+	thunderouskick: {
+		inherit: true,
+		isNonstandard: "Unobtainable",
+	},
+};
diff --git a/data/mods/vgc20/pokedex.ts b/data/mods/gen8dlc1/pokedex.ts
similarity index 100%
rename from data/mods/vgc20/pokedex.ts
rename to data/mods/gen8dlc1/pokedex.ts
diff --git a/data/mods/vgc20/scripts.ts b/data/mods/gen8dlc1/scripts.ts
similarity index 100%
rename from data/mods/vgc20/scripts.ts
rename to data/mods/gen8dlc1/scripts.ts
diff --git a/sim/team-validator.ts b/sim/team-validator.ts
index 493ebc3a4eda..3ffe035bf4f4 100644
--- a/sim/team-validator.ts
+++ b/sim/team-validator.ts
@@ -664,7 +664,7 @@ export class TeamValidator {
 			// Ability Capsule allows this in Gen 6+
 			problems.push(`${name} has a Gen 4 ability and isn't evolved - it can't use moves from Gen 3.`);
 		}
-		if (setSources.maxSourceGen() < 5 && setSources.isHidden && dex.gen <= 7) {
+		if (setSources.maxSourceGen() < 5 && setSources.isHidden && (dex.gen <= 7 || format.mod === 'gen8dlc1')) {
 			problems.push(`${name} has a Hidden Ability - it can't use moves from before Gen 5.`);
 		}
 		if (
@@ -1627,7 +1627,8 @@ export class TeamValidator {
 			if (species.abilities['H']) {
 				const isHidden = (set.ability === species.abilities['H']);
 
-				if ((!isHidden && eventData.isHidden) || (isHidden && !eventData.isHidden && dex.gen <= 7)) {
+				if ((!isHidden && eventData.isHidden) ||
+					(isHidden && !eventData.isHidden && (dex.gen <= 7 || this.format.mod === 'gen8dlc1'))) {
 					if (fastReturn) return true;
 					problems.push(`${name} must ${eventData.isHidden ? 'have' : 'not have'} its Hidden Ability${etc}.`);
 				}
@@ -1688,7 +1689,7 @@ export class TeamValidator {
 				source => parseInt(source.charAt(0)) >= 5
 			);
 			if (setSources.sourcesBefore < 5) setSources.sourcesBefore = 0;
-			if (!setSources.sourcesBefore && !setSources.sources.length && dex.gen <= 7) {
+			if (!setSources.sourcesBefore && !setSources.sources.length && (dex.gen <= 7 || this.format.mod === 'gen8dlc1')) {
 				problems.push(`${name} has a hidden ability - it can't have moves only learned before gen 5.`);
 				return problems;
 			}
@@ -1844,7 +1845,7 @@ export class TeamValidator {
 					if (learnedGen <= moveSources.sourcesBefore) continue;
 
 					if (
-						learnedGen < 7 && setSources.isHidden && dex.gen <= 7 &&
+						learnedGen < 7 && setSources.isHidden && (dex.gen <= 7 || format.mod === 'gen8dlc1') &&
 						!dex.mod('gen' + learnedGen).getSpecies(baseSpecies.name).abilities['H']
 					) {
 						// check if the Pokemon's hidden ability was available