--イントルード・ビートル
--Intruding Beetles
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW+CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCondition(s.condition)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsRace,RACE_INSECT),0,LOCATION_MZONE,LOCATION_MZONE,2,nil)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsAbleToGraveAsCost,tp,LOCATION_HAND,0,1,e:GetHandler()) end
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1) end
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	--Requirement
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,Card.IsAbleToGraveAsCost,tp,LOCATION_HAND,0,1,1,nil)
	if #g==0 or Duel.SendtoGrave(g,REASON_COST)==0 then return end
	--Effect
	if Duel.Draw(tp,1,REASON_EFFECT)==0 then return end
	local dg=Duel.GetMatchingGroup(Card.IsSpellTrap,tp,0,LOCATION_ONFIELD,nil)
	if #dg>0 and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
		local sg=dg:Select(tp,1,1,nil)
		if #sg==0 then return end
		Duel.HintSelection(sg,true)
		Duel.Destroy(sg,REASON_EFFECT)
	end
end