Vizier of Remedies, Umbral Collar Zealot, and Persistent Constrictor

Prerequisites

• Vizier of Remedies on the battlefield
• Umbral Collar Zealot on the battlefield
• Persistent Constrictor on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing Persistent Constrictor
2. When Persistent Constrictor dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies
3. Resolve the Umbral Collar Zealot ability Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite surveil