Crystalline Crawler, Necrotic Ooze, and Dragonsguard Elite

Prerequisites

• Crystalline Crawler in the graveyard
• Necrotic Ooze on the battlefield
• Dragonsguard Elite in the graveyard
• Necrotic Ooze has at least seven +1/+1 counters on it
• available

Steps

1. Activate Necrotic Ooze using Dragonsguard Elite's ability by paying , doubling the number of +1/+1 counters on Necrotic Ooze
2. Activate Necrotic Ooze six times using Crystalline Crawler's first ability by removing six +1/+1 counters from Necrotic Ooze, adding
3. Repeat

Results

• Infinite +1/+1 counters on Necrotic Ooze
• Infinite colored mana