为 Ulna Alley Shopkeep 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！
Menace (This creature can't be blocked except by two or more creatures.)
Infusion — This creature gets +2/+0 as long as you gained life this turn.
