--竜魂の幻泉
--Oasis of Dragon Souls
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMING_END_PHASE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	--destroy
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_LEAVE_FIELD_P)
	e2:SetOperation(s.checkop)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_SINGLE)
	e3:SetCode(EVENT_LEAVE_FIELD)
	e3:SetOperation(s.desop)
	e3:SetLabelObject(e2)
	c:RegisterEffect(e3)
	--destroy2
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e4:SetRange(LOCATION_SZONE)
	e4:SetCode(EVENT_LEAVE_FIELD)
	e4:SetCondition(s.descon2)
	e4:SetOperation(s.desop2)
	c:RegisterEffect(e4)
end
function s.filter(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e)
		and Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP_DEFENSE) then
		c:SetCardTarget(tc)
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_CHANGE_RACE)
		e1:SetProperty(EFFECT_FLAG_OWNER_RELATE)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetValue(RACE_WYRM)
		e1:SetCondition(s.rcon)
		tc:RegisterEffect(e1)
	end
	Duel.SpecialSummonComplete()
end
function s.rcon(e)
	return e:GetOwner():IsHasCardTarget(e:GetHandler())
end
function s.checkop(e,tp,eg,ep,ev,re,r,rp)
	if e:GetHandler():IsDisabled() then
		e:SetLabel(1)
	else e:SetLabel(0) end
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	if e:GetLabelObject():GetLabel()~=0 then return end
	local tc=e:GetHandler():GetFirstCardTarget()
	if tc and tc:IsLocation(LOCATION_MZONE) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end
function s.descon2(e,tp,eg,ep,ev,re,r,rp)
	local tc=e:GetHandler():GetFirstCardTarget()
	return tc and eg:IsContains(tc)
end
function s.desop2(e,tp,eg,ep,ev,re,r,rp)
	Duel.Destroy(e:GetHandler(),REASON_EFFECT)
end