--水の精霊 アクエリア
function c40916023.initial_effect(c)
	c:EnableReviveLimit()
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(c40916023.spcon)
	e1:SetOperation(c40916023.spop)
	c:RegisterEffect(e1)
	--pos
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(40916023,0))
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetCode(EVENT_PHASE+PHASE_STANDBY)
	e2:SetCondition(c40916023.poscon)
	e2:SetTarget(c40916023.postg)
	e2:SetOperation(c40916023.posop)
	c:RegisterEffect(e2)
end
function c40916023.spfilter(c)
	return c:IsAttribute(ATTRIBUTE_WATER) and c:IsAbleToRemoveAsCost()
end
function c40916023.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c40916023.spfilter,tp,LOCATION_GRAVE,0,1,nil)
end
function c40916023.spop(e,tp,eg,ep,ev,re,r,rp,c)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,c40916023.spfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.Remove(g,POS_FACEUP,REASON_COST)
end
function c40916023.poscon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetTurnPlayer()~=tp
end
function c40916023.posfilter(c)
	return c:IsFaceup() and c:IsCanChangePosition()
end
function c40916023.postg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) and c40916023.posfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(c40916023.posfilter,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_POSCHANGE)
	local g=Duel.SelectTarget(tp,c40916023.posfilter,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_POSITION,g,g:GetCount(),0,0)
end
function c40916023.posop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and tc:IsFaceup() then
		Duel.ChangePosition(tc,POS_FACEUP_DEFENSE,0,POS_FACEUP_ATTACK,0)
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_CANNOT_CHANGE_POSITION)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD-RESET_TURN_SET+RESET_PHASE+PHASE_END,1)
		tc:RegisterEffect(e1)
	end
end
