Crystalline Crawler, Gideon's Sacrifice, Vigor, and Warmonger

Prerequisites

• Crystalline Crawler on the battlefield
• Gideon's Sacrifice in hand
• Vigor on the battlefield
• Warmonger in hand
• available

Steps

1. Cast Gideon's Sacrifice by paying , causing all damage that would be dealt this turn to you or to permanents you control to be dealt to Crystalline Crawler instead
2. Cast Warmonger by paying
3. Activate Warmonger by paying , dealing 1 damage to each creature without flying and each player
4. Gideon's Sacrifice redirects damage to Crawler, which results in at least four +1/+1 counters being placed on it instead due to Vigor
5. Activate Crystalline Crawler's first activated ability at least twice by removing at least two +1/+1 counters from it, adding at least
6. Repeat from step 3

Results

• Infinite +1/+1 counters on Crystalline Crawler
• Infinite colored mana
• Infinite damage