为 Spinneret and Spiderling 寻找最佳的标准套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
Whenever you attack with two or more Spiders, put a +1/+1 counter on Rizna.
Whenever Rizna deals 4 or more damage, exile the top card of your library. Until the end of your next turn, you may play that card.
