Trazyn the Infinite, Scuttling Sliver, Xenograft, and Thran Dynamo

Prerequisites

• Trazyn the Infinite on the battlefield
• Scuttling Sliver on the battlefield
• Xenograft on the battlefield
• Thran Dynamo in the graveyard
• Xenograft on the battlefield with "Sliver" chosen

Steps

1. Activate Trazyn using Thran Dynamo's ability by tapping it, adding
2. Activate Trazyn by paying , untapping it
3. Repeat

Results

• Infinite colorless mana