--アイン・ロイド
local s,id,o=GetID()
function s.initial_effect(c)
	--to grave
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOGRAVE)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_DESTROYED)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.tgcon)
	e1:SetTarget(s.tgtg)
	e1:SetOperation(s.tgop)
	c:RegisterEffect(e1)
end
function s.tgcon(e,tp,eg,ep,ev,re,r,rp)
	return bit.band(r,REASON_EFFECT+REASON_BATTLE)~=0
end
function s.tgfilter(c)
	return c:IsLevelBelow(4) and c:IsRace(RACE_MACHINE) and c:IsAbleToGrave()
end
function s.tgtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.tgfilter,tp,LOCATION_DECK,0,2,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,nil,2,tp,LOCATION_DECK)
end
function s.tgop(e,tp,eg,ep,ev,re,r,rp)
	if not Duel.IsExistingMatchingCard(s.tgfilter,tp,LOCATION_DECK,0,2,nil) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.tgfilter,tp,LOCATION_DECK,0,2,2,nil)
	if g:GetCount()>0 then
		Duel.SendtoGrave(g,REASON_EFFECT)
	end
end