The Watcher in the Water, and Sage of the Falls

Prerequisites

• The Watcher in the Water on the battlefield
• Sage of the Falls on the battlefield
• You have a way to draw a card during an opponent's turn

Steps

1. Draw a card during an opponent's turn
2. The Watcher's first ability triggers, creating a 1/1 Tentacle creature token
3. When the Tentacle enters the battlefield, Sage of the Falls triggers, causing you to loot
4. Repeat from step 2

Results

• Infinite draw triggers
• Infinite looting
• Infinite self-discard triggers
• Near-infinite creature tokens
• Near-infinite ETB