Infinite card draw, Infinite draw triggers, Near-infinite +1/+1 counters on a creature, Near-infinite colorless mana, Near-infinite creature tokens, Near-infinite ETB
Draw a card.
Nadir Kraken triggers, causing you to pay to put a +1/+1 counter on it, and to create a 1/1 Tentacle creature token.
The Tentacle enters the battlefield, triggering Mana Echoes and Symmetry Matrix.
Resolve the Mana Echoes, adding for each Tentacle you control.
Resolve the Symmetry Matrix trigger, causing you to pay to draw a card.
Repeat from step 2.
Component Cards
How It Works
Draw a card.
Nadir Kraken triggers, causing you to pay to put a +1/+1 counter on it, and to create a 1/1 Tentacle creature token.
The Tentacle enters the battlefield, triggering Mana Echoes and Symmetry Matrix.
Resolve the Mana Echoes, adding for each Tentacle you control.
Resolve the Symmetry Matrix trigger, causing you to pay to draw a card.
Repeat from step 2.