Mikaeus, the Unhallowed + Viscera Seer + Furystoke Giant

Mikaeus, the Unhallowed

Viscera Seer

Furystoke Giant

How it works

1. Activate Viscera Seer by sacrificing Furystoke Giant.
2. When Furystoke Giant dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Resolve the Viscera Seer ability.
4. Activate Viscera Seer by sacrificing Furystoke Giant.
5. When Furystoke Giant dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6. Resolve the Viscera Seer ability.
7. Repeat.