Ghired, Mirror of the Wilds + Everquill Phoenix + Phyrexian Altar + Rukarumel, Biologist

Ghired, Mirror of the Wilds

Everquill Phoenix

Phyrexian Altar

Rukarumel, Biologist

How it works

1. Cast Everquill Phoenix for its mutate cost by paying 3, putting it under or over a non-Human creature you control.
2. Everquill Phoenix triggers, creating a Feather artifact token.
3. Activate Ghired by tapping it, creating a copy of the Feather token.
4. Activate Phyrexian Altar by sacrificing Ghired, adding 1.
5. Activate a Feather by paying 1 and sacrificing it, returning Ghired from your graveyard to the battlefield.
6. Repeat from step 3.