--Oracle-Mage Assailant
function c249000742.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e1:SetCode(EVENT_DAMAGE_STEP_END)
	e1:SetOperation(c249000742.caop)
	c:RegisterEffect(e1)
	--destroy
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(48343627,0))
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_LEAVE_FIELD)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DAMAGE_CAL+EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e2:SetCondition(c249000742.condition)
	e2:SetTarget(c249000742.target)
	e2:SetOperation(c249000742.operation)
	c:RegisterEffect(e2)
	--spsummon proc
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_SPSUMMON_PROC)
	e3:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e3:SetRange(LOCATION_HAND)
	e3:SetCondition(c249000742.spcon)
	c:RegisterEffect(e3)
end
function c249000742.caop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local bc=c:GetBattleTarget()
	if Duel.GetAttacker()==c and bc and c:IsRelateToBattle() and c:IsChainAttackable() then
		Duel.ChainAttack()
	end
end
function c249000742.condition(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return (c:IsReason(REASON_BATTLE) or (c:GetReasonPlayer()==1-tp and c:IsReason(REASON_EFFECT)))
		and c:IsPreviousPosition(POS_FACEUP)
end
function c249000742.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chck:IsControler(1-tp) and chkc:IsDestructable() end
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsDestructable,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,Card.IsDestructable,tp,0,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,g:GetCount(),0,0)
end
function c249000742.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end
function c249000742.spcon(e,c)
	if c==nil then return true end
	return Duel.GetFieldGroupCount(c:GetControler(),LOCATION_MZONE,0,nil)==0
		and Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0
end