Ratadrabik of Urborg + Boonweaver Giant + On Serra's Wings + Ashnod's Altar

Prerequisites

• On Serra's Wings attached to Boonweaver Giant.

Steps

1. 1Activate Ashnod's Altar by sacrificing Boonweaver Giant, adding .
2. 2When 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. 3When 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. 4Repeat.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers