Emry, Lurker of the Loch + Displacer Kitten + Derevi, Empyrial Tactician + Tormod's Crypt

Emry, Lurker of the Loch

Displacer Kitten

Derevi, Empyrial Tactician

Tormod's Crypt

How it works

1. Activate Emry by tapping it, targeting Tormod's Crypt.
2. Cast Tormod's Crypt from your graveyard by paying 0.
3. Displacer Kitten triggers, blinking Derevi.
4. When Derevi enters, it triggers, untapping Emry.
5. Activate Tormod's Crypt by tapping and sacrificing it.
6. Repeat.

This elegant loop relies on Emry, Lurker of the Loch to constantly recycle Tormod's Crypt from your graveyard for zero mana, leveraging Displacer Kitten's trigger each time you cast a noncreature spell to blink Derevi, Empyrial Tactician. Every time Derevi re-enters the battlefield, its triggered ability untaps Emry so the process can begin anew. The sacrifice and re-casting of Tormod's Crypt continuously fuels your artifact and creature triggers, generating an endless storm of entering and leaving the battlefield events.