Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 2 "World Chalice" monsters in your GY with different names; add them to your hand. If your linked Link Monster would be destroyed by battle, you can banish this card from your GY instead. You can only activate 1 "World Legacy's Heart" per turn.
--星遺物の加護
--World Legacy's Heart
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--destroy replace
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EFFECT_DESTROY_REPLACE)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetTarget(s.reptg)
	e2:SetValue(s.repval)
	e2:SetOperation(s.repop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_WORLD_CHALICE}
function s.thfilter(c,e)
	return c:IsMonster() and c:IsSetCard(SET_WORLD_CHALICE) and c:IsAbleToHand() and c:IsCanBeEffectTarget(e)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_GRAVE,0,nil,e)
	if chk==0 then return g:GetClassCount(Card.GetCode)>=2 end
	local tg=aux.SelectUnselectGroup(g,e,tp,2,2,aux.dncheck,1,tp,HINTMSG_ATOHAND)
	Duel.SetTargetCard(tg)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,tg,2,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS)
	local sg=g:Filter(Card.IsRelateToEffect,nil,e)
	if #sg>0 then
		Duel.SendtoHand(sg,nil,REASON_EFFECT)
	end
end
function s.repfilter(c,tp)
	return c:IsFaceup() and c:IsControler(tp) and c:IsReason(REASON_BATTLE)
		and c:IsLinkMonster() and c:IsLinked()
end
function s.reptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsAbleToRemove() and eg:IsExists(s.repfilter,1,nil,tp) end
	return Duel.SelectEffectYesNo(tp,e:GetHandler(),96)
end
function s.repval(e,c)
	return s.repfilter(c,e:GetHandlerPlayer())
end
function s.repop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Remove(e:GetHandler(),POS_FACEUP,REASON_EFFECT)
end