Cathars' Crusade + Clever Impersonator + Enduring Scalelord

Mana needed: {2}{U}{U}

GWU identity

Commander legal

The 3 combo pieces

• Cathars' Crusade
• Clever Impersonator
• Enduring Scalelord

How to execute it

1. Cast Clever Impersonator by paying {2}{U}{U}, choosing to have it enter the battlefield as a copy of Enduring Scalelord.
2. Clever Impersonator enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
3. Enduring Scalelord and Clever Impersonator triggers.
4. Resolve the Clever Impersonator trigger, putting a +1/+1 counter on itself.
5. Enduring Scalelord triggers, putting a +1/+1 counter on itself.
6. Repeat from step 4.

What the combo produces

• Infinite +1/+1 counters on certain creatures