Isochron Scepter + Kelpie Guide + To Arms!

WU identity

Commander legal

The 3 combo pieces

What must be in place

Creatures you control can tap to produce at least {2}.
Kelpie Guide does not have summoning sickness.

How to execute it

  1. Activate any number of creatures by tapping it, adding at least {2}.
  2. Activate Isochron Scepter by paying {2} and tapping it, casting a copy of To Arms! without paying its mana cost.
  3. Resolve the copy of To Arms!, untapping all creatures you control and causing you to draw a card.
  4. Activate Kelpie Guide by tapping it, untapping Isochron Scepter.
  5. Repeat.
  6. If creatures you control can tap to produce at least {3}, this combo nets near-infinite mana.

What the combo produces