Hardened Tactician + Mana Echoes + The Watcher in the Water

Mana needed: {1}

WUBR identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Hardened Tactician by paying {1} and sacrificing a token.
  2. If you sacrificed a Tentacle, The Watcher's second ability triggers if the creature token was a Tentacle, untapping a Kraken and putting a stun counter on up to one nonland permanent.
  3. Resolve the Hardened Tactician ability, causing you to draw a card.
  4. The Watcher's first ability triggers, creating a 1/1 Tentacle creature token.
  5. When the Tentacle enters the battlefield, Mana Echoes triggers, adding {C} for each Tentacle you control.
  6. Repeat.

What the combo produces