Maskwood Nexus + Spirit Mirror + Fractured Identity

Maskwood Nexus

Spirit Mirror

Fractured Identity

How it works

1. Cast Fractured Identity by paying 3, exiling Maskwood Nexus and causing each opponent to create a token copy of it.
2. Activate Spirit Mirror by paying 0, destroying target creature an opponent controls, as it will be a Reflection due to the opponent's Maskwood Nexus.
3. Repeat step 2 as desired.
4. You may also repeat step 2 whenever a creature enters the battlefield under an opponent's control.

This devious Commander lock hinges on giving your opponents their own Maskwood Nexus via Fractured Identity, which immediately redefines every creature they own and control as a Reflection. Once this universal identity shift is in place, Spirit Mirror's free {0} activation is no longer restricted to your own board; it targets any of your opponents' newly minted Reflection creatures and vaporizes them instantly. Because Spirit Mirror has no activation cost and can be repeated indefinitely, you gain the power to ruthlessly wipe away their entire board and instantly crush any creature they dare play.