--Speed Turn
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_POSITION+CATEGORY_DEFCHANGE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_SPEEDROID)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsPosition(POS_FACEUP_ATTACK) end
	if chk==0 then return Duel.IsExistingTarget(Card.IsPosition,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil,POS_FACEUP_ATTACK) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUPATTACK)
	Duel.SelectTarget(tp,Card.IsPosition,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil,POS_FACEUP_ATTACK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and Duel.ChangePosition(tc,POS_FACEUP_DEFENSE,POS_FACEDOWN_DEFENSE,0,0) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_DEFENSE)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		e1:SetValue(-500)
		tc:RegisterEffect(e1)
	end
end