Vhal, Candlekeep Researcher, Pemmin's Aura, and Gemstone Array

Prerequisites

• Vhal, Candlekeep Researcher on the battlefield
• Pemmin's Aura on the battlefield
• Gemstone Array on the battlefield
• Pemmin's Aura attached to Vhal
• Vhal does not have summoning sickness

Steps

1. Activate Vhal by tapping it, adding at least that cannot be spent to cast spells from your hand
2. Activate Gemstone Array's first ability by paying , putting a charge counter on it
3. Activate Gemstone Array's second ability by removing a charge counter from it, adding
4. Activate Pemmin's Aura's first ability by paying , untapping Vhal
5. Repeat

Results

• Infinite charge counters on Gemstone Array
• Infinite colored mana
• Infinite colorless mana that cannot be spent to cast spells from your hand