Raphael, Ninja Destroyer, and Chain Lightning

Prerequisites

• Raphael, Ninja Destroyer on the battlefield
• Chain Lightning in hand
• available

Steps

1. Cast Chain Lightning by paying , dealing 3 damage to Raphael and then causing you to pay to copy Chain Lightning, with the copy targeting Raphael
2. Raphael triggers, adding
3. Resolve the Chain Lightning copy, dealing 3 damage to Raphael and then causing you to pay to copy Chain Lightning, with the copy targeting Raphael
4. Repeat from step 2

Results

• Infinite red mana