Rex, Cyber-Hound, Pili-Pala, and Fanatic of Rhonas

Prerequisites

• Rex, Cyber-Hound on the battlefield
• Pili-Pala in exile
• Fanatic of Rhonas in exile
• undefined

Steps

1. Activate Rex using Fanatic of Rhonas's ability by tapping it, adding
2. Activate Rex using Pili-Pala's ability by paying and untapping it, adding one mana of any color
3. Repeat

Results

• Infinite colored mana