Shameless Charlatan + Accomplished Alchemist + Horseshoe Crab

Prerequisites

• Your commander on the battlefield as a creature and does not have summoning sickness.
• You have gained at least eight life this turn.

Steps

1. 1Activate your commander by paying , causing it to become a copy of Accomplished Alchemist until end of turn.
2. 2Activate your commander's second ability by tapping it, adding at least eight .
3. 3Activate your commander by paying , causing it to become a copy of Horseshoe Crab until end of turn.
4. 4Activate your commander by paying , untapping it.
5. 5Repeat.

Effects

• Infinite colored mana