From 60a4698695be4b5c94cd81fe268d34009f5be47c Mon Sep 17 00:00:00 2001
From: dot-Comfey <84290266+dot-Comfey@users.noreply.github.com>
Date: Wed, 13 Aug 2025 13:35:48 -0700
Subject: [PATCH] Allow past gen moves to be learned via HOME relearner
 (#11362)

---
 sim/team-validator.ts           | 5 ++++-
 test/sim/team-validator/misc.js | 8 ++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/sim/team-validator.ts b/sim/team-validator.ts
index 4c0333f8c9..4d98e022d1 100644
--- a/sim/team-validator.ts
+++ b/sim/team-validator.ts
@@ -2530,6 +2530,7 @@ export class TeamValidator {
 				}
 			}
 
+			let canUseHomeRelearner = false;
 			for (let learned of sources) {
 				// Every `learned` represents a single way a pokemon might
 				// learn a move. This can be handled one of several ways:
@@ -2557,7 +2558,7 @@ export class TeamValidator {
 					}
 					continue;
 				}
-				if (learnedGen < this.minSourceGen) {
+				if (learnedGen < this.minSourceGen && !canUseHomeRelearner) {
 					if (!cantLearnReason) {
 						cantLearnReason = `can't be transferred from Gen ${learnedGen} to ${this.minSourceGen}.`;
 					}
@@ -2570,6 +2571,8 @@ export class TeamValidator {
 					continue;
 				}
 
+				if (learnedGen === 9 && learned.charAt(1) !== 'S') canUseHomeRelearner = true;
+
 				if (
 					baseSpecies.evoRegion === 'Alola' && checkingPrevo && learnedGen >= 8 &&
 					(dex.gen < 9 || learned.charAt(1) !== 'E')
diff --git a/test/sim/team-validator/misc.js b/test/sim/team-validator/misc.js
index 37680fe8c7..de1a5c43f0 100644
--- a/test/sim/team-validator/misc.js
+++ b/test/sim/team-validator/misc.js
@@ -241,4 +241,12 @@ describe('Team Validator', () => {
 
 		assert.equal(accepted, allowed);
 	});
+
+	it('should allow moves learned via HOME relearner', () => {
+		const team = [
+			{ species: 'bronzor', level: 1, ability: 'levitate', moves: ['hypnosis'] },
+			{ species: 'porygon', level: 25, ability: 'trace', moves: ['triattack'], evs: { hp: 1 } },
+		];
+		assert.legalTeam(team, 'gen9ubers');
+	});
 });