Sunastian Falconer, Umbral Mantle, and Nyxbloom Ancient

Prerequisites

• Sunastian Falconer on the battlefield
• Umbral Mantle on the battlefield
• Nyxbloom Ancient on the battlefield

Steps

1. Activate Sunastian Falconer by tapping it, adding six
2. Activate Sunastian Falconer by paying and untapping it, giving itself +2/+2 until end of turn
3. Repeat

Results

• Infinite colorless mana
• Infinitely large Sunastian Falconer until end of turn
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce
• Infinitely large creature until end of turn