Cards
Send 1 Level 7 "Red-Eyes" monster from your hand to the GY; draw 2 cards, then you can send 1 Level 7 "Red-Eyes" monster from your Deck to the GY. You can only activate 1 "Cards of the Red Stone" per turn.
local SETCARD_ID_0 = 0x3b --Red-Eyes

local SETCARD_ID_0 = 0x3b --Red-Eyes
local s, id, o = GetID()
function s.initial_effect(c)
	--activate
	local e1 = Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsLevel(7) and c:IsAbleToGraveAsCost()
end
function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_HAND, 0, 1, nil)
	end
	Duel.DiscardHand(tp, s.cfilter, 1, 1, REASON_COST, nil)
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsPlayerCanDraw(tp, 2)
	end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(2)
	Duel.SetOperationInfo(0, CATEGORY_DRAW, nil, 0, tp, 2)
end
function s.tgfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsLevel(7) and c:IsAbleToGrave()
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	local p, d = Duel.GetChainInfo(0, CHAININFO_TARGET_PLAYER, CHAININFO_TARGET_PARAM)
	local dr = Duel.Draw(p, d, REASON_EFFECT)
	local g = Duel.GetMatchingGroup(s.tgfilter, p, LOCATION_DECK, 0, nil)
	if dr ~= 0 and g:GetCount() > 0 and Duel.SelectYesNo(p, aux.Stringid(id, 0)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG, p, HINTMSG_TOGRAVE)
		local sg = g:Select(p, 1, 1, nil)
		Duel.SendtoGrave(sg, REASON_EFFECT)
	end
end


Cards
Send 1 Level 7 "Red-Eyes" monster from your hand to the GY; draw 2 cards, then you can send 1 Level 7 "Red-Eyes" monster from your Deck to the GY. You can only activate 1 "Cards of the Red Stone" per turn.
-- Cards
local SETCARD_ID_0 = 0x3b --Red-Eyes
local s, id, o = GetID()
function s.initial_effect(c)
	--activate
	local e1 = Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsLevel(7) and c:IsAbleToGraveAsCost()
end
function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_HAND, 0, 1, nil)
	end
	Duel.DiscardHand(tp, s.cfilter, 1, 1, REASON_COST, nil)
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsPlayerCanDraw(tp, 2)
	end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(2)
	Duel.SetOperationInfo(0, CATEGORY_DRAW, nil, 0, tp, 2)
end
function s.tgfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsLevel(7) and c:IsAbleToGrave()
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	local p, d = Duel.GetChainInfo(0, CHAININFO_TARGET_PLAYER, CHAININFO_TARGET_PARAM)
	local dr = Duel.Draw(p, d, REASON_EFFECT)
	local g = Duel.GetMatchingGroup(s.tgfilter, p, LOCATION_DECK, 0, nil)
	if dr ~= 0 and g:GetCount() > 0 and Duel.SelectYesNo(p, aux.Stringid(id, 0)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG, p, HINTMSG_TOGRAVE)
		local sg = g:Select(p, 1, 1, nil)
		Duel.SendtoGrave(sg, REASON_EFFECT)
	end
end

