Brallin, Skyshark Rider, and Keen Sense

Prerequisites

• Brallin, Skyshark Rider on the battlefield
• Keen Sense on the battlefield
• Keen Sense attached to Brallin

Steps

1. During your cleanup step, discard to your maximum hand size
2. Brallin triggers for each card discarded, getting a +1/+1 counter and dealing 1 damage to each opponent
3. Keen Sense triggers, causing you to draw a card for each damage dealt
4. Pass priority, moving to an additional cleanup step
5. Repeat until you have no cards left in library or have won the game

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite +1/+1 counters on Brallin
• Near-infinite damage
• Near-infinite self-discard triggers