Initial Card State
- Aarakocra Sneak in your graveyard.
- All other permanents on the battlefield.
Notable Prerequisites
- You are able to complete a dungeon.
Steps
- Complete a dungeon.
- Sefris' second ability triggers twice due to Delney.
- Resolve the first trigger, returning up to one other creature from your graveyard to the battlefield.
- Resolve the second trigger, returning Aarakocra Sneak from your graveyard onto the battlefield.
- When Aarakocra Sneak enters, it and Preston trigger twice due to Delney.
- Holding priority, activate Viscera Seer by sacrificing Aarakocra Sneak.
- Resolve a Preston trigger, creating a token copy of Aarakocra Sneak that is a 0/1 Illusion.
- When the Aarakocra Sneak token enters, it triggers twice due to Delney.
- Resolve the Aarakocra Sneak token triggers, venturing into Undercity twice.
- Resolve the second Preston trigger from step 5, creating a token copy of Aarakocra Sneak that is a 0/1 Illusion.
- Repeat steps 8 and 9 one additional time.
- Resolve the first Aarakocra Sneak trigger from step 5, venturing into Undercity and completing Undercity.
- Repeat from step 2.
Notes
- You can choose whatever path you desire while venturing through Undercity.
Results
- Infinite +1/+1 counters on creatures you control.
- Infinite ETB.
- Infinite LTB.
- Infinite Treasure tokens.
- Infinite card draw.
- Infinite colored mana.
- Infinite creature tokens.
- Infinite death triggers.
- Infinite draw triggers.
- Infinite sacrifice triggers.
- Near-infinite lifeloss.
- Put all basic lands from your library into your hand.
- Put all creature cards from your library onto the battlefield.
- Return most creature cards from your graveyard onto the battlefield.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).