fix pollen puff heal blocked battler in CanTargetBattler

src/battle_util.c

@@ -10104,7 +10104,7 @@ bool32 CanTargetBattler(u8 battlerAtk, u8 battlerDef, u16 move)
 {
     if (gBattleMoves[move].effect == EFFECT_HIT_ENEMY_HEAL_ALLY
       && GetBattlerSide(battlerAtk) == GetBattlerSide(battlerDef)
-      && gStatuses3[battlerDef] & STATUS3_HEAL_BLOCK)
-        return FALSE;
+      && gStatuses3[battlerAtk] & STATUS3_HEAL_BLOCK)
+        return FALSE;   // Pokémon affected by Heal Block cannot target allies with Pollen Puff
     return TRUE;
 }