Morophon, the Boundless, Sliver Overlord, Mana Echoes, and Fist of Suns

Prerequisites

• Morophon, the Boundless on the battlefield
• Sliver Overlord on the battlefield
• Mana Echoes on the battlefield
• Fist of Suns on the battlefield
• "Sliver" chosen with Morophon
• , plus an additional available if you do not control another Sliver available

Steps

1. Activate Sliver Overlord by paying , searching your library for any Sliver creature card and putting it into your hand
2. Cast the Sliver by paying due to Morophon and Fist of Suns
3. When the Sliver enters the battlefield, Mana Echoes triggers, adding at least
4. Repeat

Results

• Cast all Slivers in your hand and library without paying their mana costs
• Near-infinite colorless mana