How can you create a combo with The Watcher in the Water, Symmetry Matrix, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with The Watcher in the Water, Symmetry Matrix, Ashnod's Altar

Color identity: U
Mana cost: 
Steps:
  1. Draw a card during an opponent's turn.
  2. The Watcher's first ability riggers, creating a 1/1 Tentacle creature token.
  3. When the Tentacle enters the battlefield, Symmetry Matrix triggers.
  4. Holding priority, activate Ashnod's Altar by sacrificing the Tentacle, adding {C}{C}.
  5. When the Tentacle dies, The Watcher's second ability triggers, untapping up to one Kraken you control.
  6. Resolve the Symmetry Matrix trigger, causing you to pay {1} to draw a card.
  7. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Near-infinite colorless mana
  - Near-infinite creature tokens
  - Near-infinite death triggers
  - Near-infinite enters the battlefield
  - Near-infinite leaves the battlefield
  - Near-infinite sacrifice triggers
  - Near-infinite untap of Krakens you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have a way to draw a card during an opponent's turn.
[END OF COMBO PREREQUISITES]
assistant