Death Mark (Epic)

[Burn 3]. (Put the top 3 cards of your Main Deck into your trash.)
Play a 0 :rb_might: 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] :rb_energy_1::rb_rune_rainbow::rb_rune_rainbow: (You may play this from your trash for its Flow cost. Then banish it.)