Cryptic Trilobite + Crystalline Crawler + Gemstone Array + and 2 others

Mana needed: {4}

C identity

Commander legal

The 5 combo pieces

• Cryptic Trilobite
• Crystalline Crawler
• Gemstone Array
• Karn's Bastion
• Lost Jitte

What must be in place

Lost Jitte and Gemstone Array have at least one charge counter on them.
Cryptic Trilobite and Crystalline Crawler have at least one +1/+1 counter on them.

How to execute it

1. Activate Karn's Bastion by paying {4}, putting a charge counter on Lost Jitte and Gemstone Array, and a +1/+1 counter on Cryptic Trilobite and Crystalline Crawler.
2. 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.
3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding {1}.
4. Activate Gemstone Array's second ability by removing a charge counter from it, adding {1}.
5. Activate Lost Jitte by removing a charge counter from it, untapping Karn's Bastion.
6. Repeat.

What the combo produces

• Infinite proliferate