Derevi, Empyrial Tactician + Emiel the Blessed + Elvish Archdruid

Derevi, Empyrial Tactician

Emiel the Blessed

Elvish Archdruid

How it works

1. Activate Elvish Archdruid by tapping it, adding at least .
2. Activate Emiel by paying 3, blinking Derevi.
3. When Derevi enters the battlefield, it triggers, untapping Elvish Archdruid.
4. Repeat.

This clever loop uses Emiel the Blessed as the engine to repeatedly exile and return Derevi, Empyrial Tactician, whose enter-the-battlefield trigger untaps your lands or creatures with every cycle. To keep the mana flowing, Elvish Archdruid steps in as the powerhouse druid whose tap ability generates massive amounts of green mana, easily paying the {3} activation cost required by Emiel the Blessed. Because Derevi, Empyrial Tactician untaps Elvish Archdruid every single time it re-enters the battlefield, you generate infinite green mana, infinite ETB and LTB triggers, and fully untap all your other mana-producing permanents along the way.