Moritte of the Frost + Phyrexian Altar

Moritte of the Frost

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing Moritte of the Frost, adding one mana of any color.
2. When Moritte of the Frost dies, it triggers its persist ability, returning itself to the battlefield as a copy of the creature with persist with two +1/+1 counters and one -1/-1 counter on it.
3. Remove one +1/+1 counter and one -1/-1 counter from Moritte of the Frost as a state-based action.
4. Repeat.