Prerequisites
- Goblin Warrens on the battlefield
- Mana Echoes on the battlefield
- Phyrexian Altar on the battlefield
- You control at least two Goblins
- available
Steps
- Activate Goblin Warrens by paying and sacrificing two Goblins, creating three 1/1 Goblin creature tokens
- When the Goblins enter the battlefield, Mana Echoes triggers three times, adding for each Goblin you control
- Activate Phyrexian Altar by sacrificing a Goblin, adding
- Repeat