Gutter Guardian 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}.) [Show Off] a card with [Hidden]. (As you play me, you may reveal such a card from hand or pick another friendly one on the board.) When you play me, if you showed off, [Add] {rune}.
[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。） [亮出]一张拥有[待命]的卡牌。（打出我时，你可以选择从手牌中展示一张此类卡牌，或挑选场上另一张友方的此类卡牌。） 当你打出我时，如果你亮出，则[获得]{rune}。