Cathars' Crusade + Cryptic Trilobite + Sliver Queen

WUBRG identity

Commander legal

The 3 combo pieces

What must be in place

Cryptic Trilobite has at least two +1/+1 counters on it.

How to execute it

  1. Activate Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding {C}{C} that can only be spent to activate abilities.
  2. Activate Sliver Queen by paying {2}, creating a 1/1 Sliver creature token.
  3. The Sliver enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
  4. Repeat.

What the combo produces