Fix Ame no Murakumo no Mitsurugi

script/c101207092.lua

@@ -53,7 +53,7 @@ function s.distg(e,tp,eg,ep,ev,re,r,rp,chk)
 	if chk==0 then return true end
 end
 function s.disop(e,tp,eg,ep,ev,re,r,rp)
-	if Duel.GetFieldGroupCount(tp,0,LOCATION_HAND)>0 and Duel.SelectYesNo(1-tp,aux.Stringid(id,3)) then
+	if Duel.GetMatchingGroupCount(Card.IsDiscardable,tp,0,LOCATION_HAND,nil,REASON_EFFECT)>0 and Duel.SelectYesNo(1-tp,aux.Stringid(id,3)) then
 		Duel.DiscardHand(1-tp,aux.TRUE,1,1,REASON_EFFECT+REASON_DISCARD,nil)
 	else
 		Duel.NegateEffect(ev)