Sword of the Paruns, and Heronblade Elite

Prerequisites

• Sword of the Paruns on the battlefield
• Heronblade Elite on the battlefield
• Heronblade Elite does not have summoning sickness, and has power 4 or greater
• Sword of the Paruns attached to Heronblade Elite

Steps

1. Activate Heronblade Elite by tapping it, adding at least four mana of any color
2. Activate Sword of the Paruns by paying , untapping Heronblade Elite Repeat

Results

• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Infinite colored mana