Tromell, Seymour's Butler, Pentad Prism, and Sword of the Paruns

Prerequisites

• Tromell, Seymour's Butler on the battlefield
• Pentad Prism on the battlefield
• Sword of the Paruns on the battlefield
• available

Steps

1. Activate Tromell by paying and tapping it, causing you to put at least five charge counters on Pentad Prism
2. Activate Pentad Prism five times by removing three charge counters from it, adding five mana of any color(s)
3. Activate Sword of the Paruns by paying , untapping Tromell
4. Repeat

Results

• Infinite colored mana
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce
• Infinite proliferate
• Infinite charge counters on Pentad Prism