Frostcliff Siege + Kykar, Wind's Fury + Mana Echoes + Trusty Boomerang

Mana needed: {4} at most

URW identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Trusty Boomerang by paying {1}.
  2. Kykar triggers, creating a 1/1 Spirit creature token.
  3. When the Spirit enters, Mana Echoes triggers, adding {C} for each Spirit you control.
  4. Activate Trusty Boomerang's equip ability by paying {1}, attaching it to the Spirit token.
  5. Activate the Spirit token by paying {1} and tapping it, tapping a creature a returning Trusty Boomerang from the battlefield to your hand.
  6. Repeat.

What the combo produces