The Gitrog Monster, Dakmor Salvage, and Oblivion Crown

Prerequisites

• The Gitrog Monster on the battlefield
• Dakmor Salvage in hand
• Oblivion Crown on the battlefield

Steps

1. Activate the creature with Oblivion Crown attached by discarding Dakmor Salvage
2. The Gitrog Monster's third ability triggers, causing you to mill two cards and return Dakmor Salvage from your graveyard to your hand
3. Resolve the ability from step 1, giving the creature +1/+1 until end of turn
4. Repeat

Results

• Infinite self-mill
• Near-infinitely large creature until end of turn
• Near-infinite self-discard triggers