Earthcraft, Bootleggers' Stash, and Battered Golem

Prerequisites

• Earthcraft on the battlefield
• Bootleggers' Stash on the battlefield
• Battered Golem on the battlefield
• You control a basic land

Steps

1. Activate a basic land by tapping it, creating a Treasure token
2. The Treasure enters the battlefield, triggering Battered Golem, untapping Battered Golem
3. Activate Earthcraft by tapping Battered Golem, untapping the basic land
4. Repeat

Results

• Infinite colored mana
• Infinite Treasure tokens