Etrata, the Silencer + Roaming Throne + Lithoform Engine

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 twice due to Roaming Throne.
2. 2Holding priority, activate Lithoform Engine by paying and tapping it, copying either of Etrata's triggers.
3. 3Resolve 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