--天空賢者ミネルヴァ
--Minerva, Scholar of the Sky
local s,id=GetID()
function s.initial_effect(c)
	--atk
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e0:SetCode(EVENT_CHAINING)
	e0:SetRange(LOCATION_MZONE)
	e0:SetOperation(aux.chainreg)
	c:RegisterEffect(e0)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e1:SetCode(EVENT_CHAIN_SOLVED)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.atkcon)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
end
s.listed_names={CARD_SANCTUARY_SKY}
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return re:IsHasType(EFFECT_TYPE_ACTIVATE) and re:IsActiveType(TYPE_COUNTER) and e:GetHandler():GetFlagEffect(1)>0
end
function s.thfilter(c,code)
	return c:IsType(TYPE_COUNTER) and not c:IsCode(code) and c:IsAbleToHand()
end
function s.atkop(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_ATTACK)
	e1:SetValue(500)
	e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE)
	c:RegisterEffect(e1)
	local rc=re:GetHandler()
	if not rc then return end
	local g=Duel.GetMatchingGroup(aux.NecroValleyFilter(s.thfilter),tp,LOCATION_GRAVE,0,nil,rc:GetCode())
	if Duel.IsEnvironment(CARD_SANCTUARY_SKY) and #g>0 then
		Duel.Hint(HINT_CARD,0,id)
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
		local sg=g:Select(tp,1,1,nil)
		Duel.SendtoHand(sg,nil,REASON_EFFECT)
	end
end