为 传说集萃 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！
This artifact enters with a page counter on it.
Whenever your commander enters or attacks, put a page counter on this artifact.
, , Remove a page counter from this artifact: Draw a card.
