From 0b50cbe34898ebefc7b239402ff9a9f780c86d37 Mon Sep 17 00:00:00 2001
From: Wlowscha <54003515+Wlowscha@users.noreply.github.com>
Date: Sun, 16 Mar 2025 12:34:27 +0100
Subject: [PATCH] Exclude form changes that are not triggered by an item

---
 src/data/challenge.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/data/challenge.ts b/src/data/challenge.ts
index 1c40c63dd31..a54f72aa7cc 100644
--- a/src/data/challenge.ts
+++ b/src/data/challenge.ts
@@ -1311,6 +1311,11 @@ function checkSpeciesValidForChallenge(species: PokemonSpecies, props: DexAttrPr
     return true;
   }
   pokemonFormChanges[species.speciesId].forEach(f1 => {
+    // Exclude form changes that require the mon to be on the field to begin with,
+    // such as Castform
+    if (!("item" in f1)) {
+      return;
+    }
     species.forms.forEach((f2, formIndex) => {
       if (f1.formKey === f2.formKey) {
         const formProps = { ...props };