为 塑野师姜旸谷 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！
Each creature you control with a +1/+1 counter on it has ": Add one mana of any color."
: Put a +1/+1 counter on target creature.
