Riftbound Spell: Death Mark. [Burn 3]. (Put the top 3 cards of your Main Deck into your trash.) Play a 0 [S] Shadow Clone unit token. (It has "When I attack, you may banish a unit from your trash. If you do, give me [Assault 4] this turn.") [Flow] [1][A][A] (You may play this from your trash for its Flow cost. Then banish it.)