为 Snarl Song 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！
Converge — Create two 0/0 green and blue Fractal creature tokens. Put X +1/+1 counters on each of them and you gain X life, where X is the number of colors of mana spent to cast this spell.
