Reyhan, Last of the Abzan, Umbral Collar Zealot, Scurry Oak, and Railway Brawler

Prerequisites

• Reyhan, Last of the Abzan on the battlefield
• Umbral Collar Zealot on the battlefield
• Scurry Oak in hand
• Railway Brawler on the battlefield
• available

Steps

1. Cast Scurry Oak by paying its mana cost
2. When Scurry Oak enters, Railway Brawler triggers, putting +1/+1 counter(s) on Scurry Oak Scurry Oak triggers, creating a creature token
3. When the creature token enters, Railway Brawler triggers, putting +1/+1 counter(s) on it
4. Activate Umbral Collar Zealot by sacrificing the creature token
5. When the creature token dies, Reyhan triggers, putting +1/+1 counter(s) on Scurry Oak Repeat steps 3 and 4 once
6. Resolve the Umbral Collar Zealot ability
7. Repeat from step 5

Results

• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite surveil
• Infinite +1/+1 counters on a creature
• Infinite ETB