为 循光间质 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！
When this artifact enters, draw a card.
, : Target Mount you control becomes saddled until end of turn. Activate only as a sorcery.
, : Target Vehicle you control becomes an artifact creature until end of turn.
