Missy + Viscera Seer + Coral Trickster

Missy

Viscera Seer

Coral Trickster

How it works

1. Activate Viscera Seer by sacrificing Coral Trickster..
2. When Coral Trickster dies, Missy's first ability triggers, returning Coral Trickster from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
3. Resolve the Viscera Seer ability, causing you to scry 1.
4. Activate a mana-producing permanent by tapping it, adding at least .
5. Activate Coral Trickster's morph ability by paying , turning it face up.
6. Coral Trickster triggers, untapping target permanent.
7. Repeat.

This ingenious loop relies on Missy to constantly recycle your creatures, turning any casualty into a fresh 2/2 Cyberman artifact creature whenever it hits the graveyard. By feeding Coral Trickster to Viscera Seer, you trigger Missy's revival ability and set up an endless engine; because Coral Trickster can be turned face up for just blue mana using its morph ability, you can repeatedly flip it to untap the mana source you used to pay for it, yielding infinite death triggers, enter-the-battlefield triggers, and scry 1s.