Stalwart Successor, Viscera Seer, and Heartmender

Prerequisites

• Stalwart Successor on the battlefield
• Viscera Seer on the battlefield
• Heartmender on the battlefield

Steps

1. Activate Viscera Seer by sacrificing Heartmender When Heartmender dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Heartmender enters, Stalwart Successor triggers, putting a +1/+1 counter on Heartmender Resolve the Viscera Seer ability
3. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers
• Infinite creature sacrifice triggers
• Infinite scry 1