Animate Land, Rakdos Carnarium, Utopia Sprawl, and Vigean Graftmage

Prerequisites

• Animate Land in hand
• Rakdos Carnarium on the battlefield
• Utopia Sprawl on the battlefield
• Vigean Graftmage on the battlefield
• Utopia Sprawl attached to Rakdos Carnarium
• Rakdos Carnarium does not have summoning sickness
• You have a way to put a +1/+1 counter on Rakdos Carnarium
• "Blue" chosen with Utopia Sprawl
• available

Steps

1. Cast Animate Land by paying , causing Rakdos Carnarium to become a creature until end of turn
2. Put a +1/+1 counter on Rakdos Carnarium
3. Activate Rakdos Carnarium by tapping it, adding
4. Utopia Srawl triggers, adding
5. Activate Vigean Graftmage by paying , untapping Rakdos Carnarium
6. Repeat

Results

• Infinite black mana
• Infinite red mana