为 血口乳突龙 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 this creature enters or attacks, discard a card, then seek a nonland card. When you discard a card this way, this creature deals damage equal to the discarded card's mana value to any target.
