Riftbound Spell: Sanction. [Reaction] (Play any time, even before spells and abilities resolve.) Choose one — - Empower a unit. Disempower it at end of turn. - Disempower a unit that's [Empowered]. Empower it at end of turn.
Riftbound Unit: Monch. If an opponent controls a stunned unit, I cost [2] less and enter ready.
Riftbound Unit: Guardian of the Passage. When I hold, you may return a unit or gear from your trash to your hand.
Riftbound Unit: Vayne, Hunter. [Assault 3] (+3 [S] while I'm an attacker.) If an opponent controls a battlefield, I enter ready. When I conquer, you may pay [1] to return me to my owner's hand.