Riftbound Unit: Brynhir Thundersong. When you play me, opponents can't play cards this turn.
Riftbound Unit: Rumble, Hotheaded. Your Mechs each have [Assault]. (+1 [S] while we're attackers.) When I conquer, you may recycle another friendly unit to play a Mech from your trash. Reduce its Energy cost by the Might of the unit you recycled.
Riftbound Unit: Xerath, Freed. [C], [T]: Deal 3 to a unit. Use this ability only while I'm at a battlefield.
Riftbound Unit: Field Musicians. When you play me, give a unit +3 [S] this turn.