Mikaeus, the Unhallowed + Cauldron of Souls + Dross Scorpion + Viscera Seer

Mikaeus, the Unhallowed

Cauldron of Souls

Dross Scorpion

Viscera Seer

How it works

1. Activate Cauldron of Souls by tapping it, giving Dross Scorpion persist until end of turn.
2. Activate Viscera Seer by sacrificing Dross Scorpion.
3. Dross Scorpion dies, triggering its ability, its undying ability and its persist ability.
4. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
5. Resolve the Dross Scorpion persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. Activate Viscera Seer by sacrificing Dross Scorpion.
7. Dross Scorpion dies, triggering its ability and its undying ability.
8. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
9. Resolve the second Dross Scorpion trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
10. Activate Viscera Seer by sacrificing Dross Scorpion.
11. Dross Scorpion dies, triggering its ability and its persist ability.
12. Repeat from step 4.
13. Resolve all Viscera Seer abilities, causing you to scry 1 infinite times.