Putrid Goblin, Warden of the Grove, and Clickslither

Prerequisites

• Putrid Goblin on the battlefield
• Warden of the Grove on the battlefield
• Clickslither on the battlefield

Steps

1. Activate Clickslither by sacrificing Putrid Goblin When Putrid Goblin dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Putrid Goblin enters, Warden of the Grove triggers, putting a +1/+1 counter on Putrid Goblin
3. Resolve the Clickslither ability
4. Repeat

Results

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