为 月银索命使 寻找最佳的先驱套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
Flying
Delirium — Sacrifice another creature: This creature gets +2/+1 until end of turn. Activate only if there are four or more card types among cards in your graveyard.
