Lazav, the Multifarious + Lesser Masticore + Ashnod's Altar + Butcher Ghoul

Lazav, the Multifarious

Lesser Masticore

Ashnod's Altar

Butcher Ghoul

How it works

1. Activate Lazav by paying 2, choosing to have it become a copy of Lesser Masticore if it doesn't have a -1/-1 counter on it, or Butcher Ghoul otherwise.
2. Activate Ashnod's Altar by sacrificing Lazav, adding CC.
3. When Lazav dies, if it was a copy of Lesser Masticore, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
4. Otherwise, Lazav's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. When Lazav enters the battlefield, it triggers, causing you to surveil 1.
6. Repeat.