fix

c71921856 No.79 BK 新星のカイザー
The sp_summon effect cannot activate when the number of xyz_material is 0.

c98645731 強欲で謙虚な壺
If the player is affected by effects like ライオウ, the card is not treated as senting to grave  by a card effect.

script/c71921856.lua

@@ -55,7 +55,7 @@ function c71921856.spcon(e,tp,eg,ep,ev,re,r,rp)
 	local ct=c:GetOverlayCount()
 	e:SetLabel(ct)
 	return c:IsReason(REASON_DESTROY) and c:GetReasonPlayer()~=tp
-		and c:IsPreviousLocation(LOCATION_MZONE) and c:GetPreviousControler()==tp
+		and c:IsPreviousLocation(LOCATION_MZONE) and c:GetPreviousControler()==tp and ct>0
 end
 function c71921856.spfilter(c,e,tp)
 	return c:IsLevelBelow(4) and c:IsSetCard(0x84) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)

script/c98645731.lua

@@ -45,7 +45,7 @@ function c98645731.activate(e,tp,eg,ep,ev,re,r,rp)
 			Duel.ConfirmCards(1-p,sg)
 			Duel.ShuffleHand(p)
 		else
-			Duel.SendtoGrave(sg,REASON_EFFECT)
+			Duel.SendtoGrave(sg,REASON_RULE)
 		end
 		Duel.ShuffleDeck(p)
 	end