Etrata, the Silencer + Lithoform Engine + Abstruse Archaic

Etrata, the Silencer

Lithoform Engine

Abstruse Archaic

How it works

1. Deal combat damage to an opponent using Etrata, triggering its ability.
2. Holding priority, activate Lithoform Engine's first ability by paying 2 and tapping it, targeting Etrata's trigger.
3. Holding priority, activate Abstruse Archaic by paying 1 and tapping it, copying Lithoform Engine's trigger, targeting Etrata's trigger.
4. Resolve both Lithoform Engine triggers, copying Etrata's trigger twice.
5. Resolve all Etrata triggers, exiling three creatures an opponent controls and putting hit counters on them, and then causing that opponent to lose the game.

Etrata, the Silencer uses her unblockable nature to safely land a combat hit on an opponent, triggering her assassination ability to exile a creature and place a hit counter. To bypass her mandatory shuffle and rapidly accelerate her alternate win condition, we duplicate that crucial trigger using the flexible copying abilities of Lithoform Engine and Abstruse Archaic. By chaining these copies together, a single successful strike instantly hits the threshold of three exiled cards with hit counters, closing out the game on the spot.