Mikaeus, the Unhallowed + Viscera Seer + Soulstinger

Mikaeus, the Unhallowed

Viscera Seer

Soulstinger

How it works

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

This clever loop uses Mikaeus, the Unhallowed to grant undying to our non-Human creatures, allowing Soulstinger to keep returning from the graveyard each time it hits the dirt. The real magic happens because Soulstinger enters with a +1/+1 counter from undying, but its own enters-the-battlefield trigger places two -1/-1 counters on it; state-based actions immediately have these counters annihilate each other, leaving the creature with a clean slate and no counters at all so undying can trigger again. Viscera Seer acts as our reliable sacrifice outlet, letting us turn this endless cycle into infinite scrys, death triggers, and sacrifices to fuel any grand alchemical design we desire.