local cm,m=GetID()
cm.name="传说的原石"
function cm.initial_effect(c)
	--Special Summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(m,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(cm.condition)
	e1:SetTarget(cm.target)
	e1:SetOperation(cm.operation)
	c:RegisterEffect(e1)
end
--Special Summon
function cm.spfilter(c,e,tp)
	return RD.IsLegendCard(c) and c:IsType(TYPE_NORMAL) and c:IsRace(RACE_DRAGON)
		and Duel.GetMZoneCount(tp)>0 and RD.IsCanBeSpecialSummoned(c,e,tp,POS_FACEUP)
end
function cm.condition(e,tp,eg,ep,ev,re,r,rp)
	return RD.IsSummonTurn(e:GetHandler())
end
function cm.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>3 end
end
function cm.operation(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)<4 then return end
	local sg,g=RD.RevealDeckTopAndCanSelect(tp,4,aux.Stringid(m,1),HINTMSG_SPSUMMON,cm.spfilter,1,1,e,tp)
	if sg:GetCount()>0 then
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
	end
	Duel.ShuffleDeck(tp)
end