Etrata, the Silencer + Lithoform Engine + Peter Parker's Camera

Etrata, the Silencer

Lithoform Engine

Peter Parker's Camera

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, copying Etrata's trigger.
3. Holding priority, activate Peter Parker's Camera by paying 2, removing a flim counter from it and tapping it, copying Etrata's trigger.
4. 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.