Juniper Order Ranger, and Umbral Collar Zealot

Prerequisites

• Juniper Order Ranger on the battlefield
• Umbral Collar Zealot on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing the persist creature
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When the persist creature enters, Juniper Order Ranger triggers, putting a +1/+1 counter on the persist creature and Juniper Order Ranger
4. Resolve the Umbral Collar Zealot ability
5. Repeat

Results

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