Ratadrabik of Urborg + Boonweaver Giant + On Serra's Wings + Yahenni, Undying Partisan

Prerequisites

• On Serra's Wings attached to Boonweaver Giant.

Steps

1. 1Activate Yahenni by sacrificing Boonweaver Giant.
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. 4Resolve the Yahenni ability, giving it indestructible until end of turn.
5. 5Repeat.

Effects

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