Crystalline Crawler + Evolution Witness + Jukai Preserver + Zirda, the Dawnwaker

Mana needed: {G}

RGW identity

Commander legal

The 4 combo pieces

• Crystalline Crawler
• Evolution Witness
• Jukai Preserver
• Zirda, the Dawnwaker

How to execute it

1. Activate Jukai Preserver by paying {G} and discarding it, putting a +1/+1 counter on Crystalline Crawler and Evolution Witness.
2. Evolution Witness triggers, returning Jukai Preserver from your graveyard to your hand.
3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding {G}.
4. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite self-discard triggers