How can you create a combo with Nadir Kraken, Carnage Altar, Mana Echoes?
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[START OF COMBO]This combo can be formed with Nadir Kraken, Carnage Altar, Mana Echoes

Color identity: UR
Mana cost: {3}
Steps:
  1. Activate Carnage Altar by paying {3} and sacrificing a creature, causing you to draw a card.
  2. Nadir Kraken triggers, causing you to pay {1} to put a +1/+1 counter on Nadir Kraken and to create a 1/1 Tentacle creature token.
  3. The Tentacle enters the battlefield, triggering Mana Echoes, adding at least {C}{C}{C}{C}{C}.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Near-infinite +1/+1 counters on Nadir Kraken
  - 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[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least four Tentacles.
  - You control at least one additional creature.
[END OF COMBO PREREQUISITES]
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