Derevi, Empyrial Tactician + Bloom Tender + Delney, Streetwise Lookout + Altar of Dementia

Derevi, Empyrial Tactician

Bloom Tender

Delney, Streetwise Lookout

Altar of Dementia

How it works

1. Activate Bloom Tender by tapping it, adding at least .
2. Activate Altar of Dementia by sacrificing Derevi.
3. Choose to return Derevi from your graveyard to the command zone.
4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Derevi's power.
5. Activate Derevi by paying 1, putting it from the command zone onto the battlefield.
6. When Derevi enters the battlefield, it triggers twice.
7. Resolve the first trigger, untapping Bloom Tender.
8. Activate Bloom Tender by tapping it, adding at least .
9. Resolve the second Derevi trigger, untapping Bloom Tender.
10. Repeat.
11. Once you have infinite mana, you may untap any other permanent(s) using Derevi.