Aphetto Alchemist + Energy Arc + Lithoform Engine + Zethi, Arcane Blademaster

WU identity

Commander legal

The 4 combo pieces

What must be in place

Zethi and Aphetto Alchemist do not have summoning sickness.
Creatures you control can tap to produce at least {3}{W}{U}.

How to execute it

  1. Declare Zethi as an attacker, triggering its second ability.
  2. Holding priority, activate all mana producing creatures you control by tapping them, adding at least {3}{W}{U}.
  3. Activate Lithoform Engine's first ability by paying {2} and tapping it, copying Zethi's triggered ability.
  4. Resolve the copy of Zethi's ability, creating a copy of each card exiled with a kick counter of it and causing you to pay {W}{U} to cast the copy of Energy Arc.
  5. Resolve the Energy Arc copy, untapping all mana producing creatures you control and Aphetto Alchemist.
  6. Activate Aphetto Alchemist by tapping it, untapping Lithoform Engine.
  7. Repeat from step 2.
  8. Once you have infinite mana, you may use that mana to then cast the copies of all other cards exiled with kick counters on them.

What the combo produces