Riftbound Spell: Twilight Step. Move a unit with 3 [S] or less. [Flow] [4][C] (You may play this from your trash for its Flow cost. Then banish it.)
Riftbound Unit: Imposing Challenger. When I move, you may move an enemy unit here with less Might than me to a different battlefield.
Riftbound Unit: Ruin Runner. I can't be chosen by enemy spells and abilities.
Riftbound Spell: Singularity. Deal 6 to each of up to two units.