Ravenous Intruder, Yotian Dissident, and Wingrattle Scarecrow

Prerequisites

• Ravenous Intruder on the battlefield
• Yotian Dissident on the battlefield
• Wingrattle Scarecrow on the battlefield

Steps

1. Activate Ravenous Intruder by sacrificing Wingrattle Scarecrow When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Wingrattle Scarecrow enters, Yotian Dissident triggers, putting a +1/+1 counter on Wingrattle Scarecrow Resolve the Ravenous Intruder ability
3. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinitely large creature until end of turn