Elemental Mastery, Captain of the Mists, and Maskwood Nexus

Prerequisites

• Elemental Mastery on the battlefield
• Captain of the Mists on the battlefield
• Maskwood Nexus on the battlefield
• undefined

Steps

1. Activate Captain of the Mists by tapping it, creating at least two 1/1 Elemental creature tokens with haste
2. When the Elementals enter the battlefield as Humans due to Maskwood Nexus, Captain of the Mists triggers, untapping itself
3. Repeat

Results

• Infinite creature tokens with haste
• Infinite ETB