O'aka, Traveling Merchant, Mind Over Matter, and Teferi's Talent

Prerequisites

• O'aka, Traveling Merchant on the battlefield
• Mind Over Matter on the battlefield
• Teferi's Talent on the battlefield

Steps

1. Activate O'aka by tapping it and removing a counter from a nonland permanent, causing you to draw a card
2. Teferi's Talent triggers, putting a counter on the planeswalker it is attached to
3. Activate Mind Over Matter by discarding a card, untapping O'aka
4. Repeat

Results

• Infinite self-discard triggers
• Infinite draw triggers
• Infinite looting