Simic Ragworm, Illusionist's Bracers, and Karametra's Favor

Prerequisites

• Simic Ragworm on the battlefield
• Illusionist's Bracers on the battlefield
• Karametra's Favor on the battlefield
• Illusionist's Bracers and Karametra's Favor attached to Simic Ragworm
• Simic Ragworm does not have summoning sickness

Steps

1. Activate Simic Ragworm by tapping it, adding
2. Activate Simic Ragworm by paying
3. Illusionist's Bracers triggers, copying Simic Ragworm's ability
4. Resolve the copy of Simic Ragworm's ability, untapping it
5. Activate Simic Ragworm by tapping it, adding one mana of any color
6. Resolve Simic Ragworm's ability from step 2, untapping it
7. Repeat

Results

• Infinite colored mana