Experiment Kraj, Gilder Bairn, and Axebane Guardian

Prerequisites

• Experiment Kraj on the battlefield
• Gilder Bairn on the battlefield
• Axebane Guardian on the battlefield

Steps

1. Activate Experiment Kraj using Axebane Guardian's ability by tapping it, adding at least
2. Activate Experiment Kraj using Gilder Bairn's ability by paying and untapping it, doubling each counter on target permanent
3. Repeat

Results

• Infinite colored mana
• Infinite proliferate