Etrata, the Silencer + Lithoform Engine + Abstruse Archaic

Prerequisites

• An opponent controls three nontoken creatures that they own and that are not commanders.

Steps

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

Effects

• Target opponent loses the game