Danitha, Benalia's Hope + Shade's Form + Carrion Feeder

Danitha, Benalia's Hope

Shade's Form

Carrion Feeder

How it works

1. Activate Carrion Feeder by sacrificing Danitha.
2. When Danitha dies, Shade's Form triggers, returning Danitha from your graveyard to the battlefield tapped.
3. When Danitha enters the battlefield, it triggers, returning Shade's Form from your graveyard to the battlefield attached to Danitha.
4. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
5. Repeat.