local cm,m=GetID()
cm.name="花牙踏"
function cm.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(cm.condition)
	e1:SetCost(cm.cost)
	e1:SetTarget(cm.target)
	e1:SetOperation(cm.activate)
	c:RegisterEffect(e1)
end
--Activate
function cm.costfilter(c)
	return c:IsRace(RACE_PLANT) and c:IsAbleToDeckOrExtraAsCost()
end
function cm.filter(c,e,tp)
	return c:IsAttackPos() and RD.IsCanChangePosition(c,e,tp,REASON_EFFECT)
end
function cm.condition(e,tp,eg,ep,ev,re,r,rp)
	local c=Duel.GetAttackTarget()
	return Duel.GetAttacker():IsControler(1-tp)
		and c and c:IsFaceup() and c:IsRace(RACE_PLANT)
end
cm.cost=RD.CostSendGraveToDeckBottom(cm.costfilter,2,2)
function cm.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(cm.filter,tp,0,LOCATION_MZONE,1,nil,e,tp) end
	local g=Duel.GetMatchingGroup(cm.filter,tp,0,LOCATION_MZONE,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_POSITION,g,g:GetCount(),0,0)
end
function cm.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(cm.filter,tp,0,LOCATION_MZONE,nil,e,tp)
	if g:GetCount()>0 then
		RD.ChangePosition(g,e,tp,REASON_EFFECT,POS_FACEUP_DEFENSE)
	end
end