Momentary Companion is a Riftbound card. Compare listings from Singapore Riftbound sellers on CardJio, then jio them on WhatsApp.
[Hidden] (Hide now for {rune} to react with later for {0}.) When you play me, if it's not your turn, give me [Temporary]. (Kill me at the start of my controller's Beginning Phase, before scoring.)
[待命]（支付{rune}正面朝下放置此牌，之后可支付{0}将其当作反应牌打出。） 当你打出我时，如果此时不是你的回合，则给予我[瞬息]。（在我控制者的开始阶段开始时，结算得分之前将我摧毁。）