Araumi of the Dead Tide, Mirror-Mad Phantasm, and Thassa's Oracle

Prerequisites

• Araumi of the Dead Tide on the battlefield
• Mirror-Mad Phantasm in the graveyard
• Thassa's Oracle in hand
• Araumi of the Dead Tide does not have summoning sickness
• You have at least one additional card in your graveyard for each opponent you have
• You have a way to draw a card
• available

Steps

1. Activate Araumi by tapping it and exiling cards from your graveyard equal to the number of opponent you have, giving Mirror-Mad Phantasm encore until end of turn
2. Activate Mirror-Mad Phantasm's encore ability by paying and exiling it, causing you to create a token copy with haste for each opponent you have
3. Activate a Mirror-Mad Phantasm token by paying , causing you to shuffle it into your library, then reveal and mill your entire library due to not having a card named Mirror-Mad Phantasm in it
4. Cast Thassa's Oracle by paying
5. Thassa's Oracle enters the battlefield, causing you to win the game

Results

• Infinite self-mill
• Win the game