Initial Card State
- Marneus Calgar and The Watcher in the Water on the battlefield.
Notable Prerequisites
- You have a way to draw a card during an opponent's turn.
- You have a way to interrupt the loop after drawing your library.
Steps
- Draw a card during an opponent's turn by triggering Marneus Calgar using his activated ability, or by any other method.
- The Watcher in the Water triggers, creating a 1/1 Tentacle creature token.
- When the Tentacle enters the battlefield, Marneus Calgar triggers, causing you to draw a card.
- Repeat from step 2.
- After drawing any number of cards, interrupt the mandatory infinite loop by winning the game or removing a combo piece in response to a trigger.
Results
- Infinite card draw.
- Infinite draw triggers.
- Near-infinite creature tokens.
- Near-infinite ETB.
Bracket Tag
This combo has been estimated to be Spicy (Bracket 3-4+).