--パワー・ジャイアント
function c7025445.initial_effect(c)
	--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(c7025445.spcon)
	e1:SetTarget(c7025445.sptg)
	e1:SetOperation(c7025445.spop)
	e1:SetValue(SUMMON_VALUE_SELF)
	c:RegisterEffect(e1)
	--level change
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetCondition(c7025445.lvcon)
	e2:SetOperation(c7025445.lvop)
	e2:SetLabelObject(e1)
	c:RegisterEffect(e2)
	--dam reduce
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e3:SetCode(EVENT_ATTACK_ANNOUNCE)
	e3:SetOperation(c7025445.damop)
	c:RegisterEffect(e3)
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e4:SetCode(EVENT_BE_BATTLE_TARGET)
	e4:SetOperation(c7025445.damop)
	c:RegisterEffect(e4)
end
function c7025445.cfilter(c)
	return c:IsLevelBelow(4) and c:IsAbleToGraveAsCost()
end
function c7025445.spcon(e,c)
	if c==nil then return true end
	return Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c7025445.cfilter,c:GetControler(),LOCATION_HAND,0,1,c)
end
function c7025445.sptg(e,tp,eg,ep,ev,re,r,rp,chk,c)
	local g=Duel.GetMatchingGroup(c7025445.cfilter,tp,LOCATION_HAND,0,c)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local tc=g:SelectUnselect(nil,tp,false,true,1,1)
	if tc then
		e:SetLabelObject(tc)
		return true
	else return false end
end
function c7025445.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	Duel.SendtoGrave(g,REASON_SPSUMMON)
	e:SetLabel(g:GetLevel())
end
function c7025445.lvcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():GetSummonType()==SUMMON_TYPE_SPECIAL+SUMMON_VALUE_SELF
end
function c7025445.lvop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_LEVEL)
	e1:SetValue(-e:GetLabelObject():GetLabel())
	e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_DISABLE)
	c:RegisterEffect(e1)
end
function c7025445.damop(e,tp,eg,ep,ev,re,r,rp)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CHANGE_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetValue(c7025445.damval)
	e1:SetReset(RESET_PHASE+PHASE_DAMAGE)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_NO_EFFECT_DAMAGE)
	e2:SetReset(RESET_PHASE+PHASE_DAMAGE)
	Duel.RegisterEffect(e2,tp)
end
function c7025445.damval(e,re,val,r,rp,rc)
	if bit.band(r,REASON_EFFECT)~=0 then return 0
	else return val end
end
