--グランド・ケルベロス
--Ground Cerberus
local s,id=GetID()
function s.initial_effect(c)
	--Inflict damage equal to the number of your EARTH Machines x 300
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DAMAGE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetTarget(s.damtg)
	e1:SetOperation(s.damop)
	c:RegisterEffect(e1)
end
function s.dfilter(c)
	return c:IsFaceup() and c:IsAttribute(ATTRIBUTE_EARTH) and c:IsRace(RACE_MACHINE)
end
function s.damtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local ct=Duel.GetMatchingGroupCount(s.dfilter,tp,LOCATION_MZONE,0,nil)
	if chk==0 then return ct>0 end
	Duel.SetTargetPlayer(1-tp)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,ct*300)
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
	local ct=Duel.GetMatchingGroupCount(s.dfilter,tp,LOCATION_MZONE,0,nil)
	Duel.Damage(p,ct*300,REASON_EFFECT)
end