Mikaeus, the Unhallowed + Solemnity + Mirror Image

Mikaeus, the Unhallowed

Solemnity

Mirror Image

How it works

1. Cast Mirror Image by paying 2, having it enter as a copy of Mikaeus.
2. Choose to have Mirror Image put into your graveyard due to the legend rule.
3. Mirror Image dies, triggering its undying ability, returning itself to the battlefield with no +1/+1 counters due to Solemnity, as a copy of Mikaeus.
4. Repeat from step 2.