Evolution Witness + Inexorable Tide

GU identity

Commander legal

The 2 combo pieces

What must be in place

Evolution Witness has a +1/+1 counter on it.
One of the creatures with mana value 0 must be in your hand, with the other in your graveyard.

How to execute it

  1. Cast the creature with mana value 0 from your hand by paying {0}.
  2. Inexorable Tide triggers, putting a +1/+1 counter on Evolution Witness.
  3. Evolution Witness triggers, returning the other creature with mana value 0 from your graveyard to your hand.
  4. Resolve the creature spell cast in step 1.
  5. The creature enters the battlefield and dies as a state-based action due to having 0 toughness.
  6. Repeat.

What the combo produces