Ratadrabik of Urborg + Boonweaver Giant + On Serra's Wings + Carrion Feeder

Ratadrabik of Urborg

Boonweaver Giant

On Serra's Wings

Carrion Feeder

How it works

1. Activate Carrion Feeder by sacrificing Boonweaver Giant.
2. When Boonweaver Giant dies as a legendary creature due to On Serra's Wings, Ratadrabik of Urborg triggers, creating a token copy of Boonweaver Giant that is a 2/2 Zombie in addition to its other types.
3. When the Boonweaver Giant token enters the battlefield, it triggers, returning On Serra's Wings from your graveyard to the battlefield attached to the token.
4. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
5. Repeat.