Vhal, Candlekeep Researcher, Freed from the Real, and Signpost Scarecrow

Prerequisites

• Vhal, Candlekeep Researcher on the battlefield
• Freed from the Real on the battlefield
• Signpost Scarecrow on the battlefield

Steps

1. Activate Vhal by tapping it, adding at least that cannot be spent to cast spells from your hand
2. Activate Signpost Scarecrow by paying , adding
3. Activate Freed from the Real's second ability by paying , untapping Vhal
4. Repeat

Results

• Infinite colored mana
• Infinite colorless mana that cannot be spent to cast spells from your hand