Cayth, Famed Mechanist + Great Oak Guardian

RGWU identity

Commander legal

The 2 combo pieces

What must be in place

Creatures you control can tap to produce at least {2}.
You control a Great Oak Guardian token.

How to execute it

  1. Activate any number of creatures by tapping them, adding at least {2}.
  2. Activate Cayth by paying {2} and tapping it, creating a copy of the Great Oak Guardian token.
  3. When the Great Oak Guardian token enters the battlefield, it triggers, untapping all creatures you control and giving them +2/+2 until end of turn.
  4. Repeat.

What the combo produces