Mishra, Eminent One + Urza, Lord High Artificer + Worldwalker Helm + Tuktuk Rubblefort

Mishra, Eminent One

Urza, Lord High Artificer

Worldwalker Helm

Tuktuk Rubblefort

How it works

1. At the beginning of your combat phase, Mishra triggers, creating a token copy of Worldwalker Helm that is a 4/4 Construct artifact creature with haste named Mishra's Warform, and a Map token.
2. Activate Urza's first ability by tapping a Map, adding .
3. Activate Mishra's Warform by paying 1 and tapping it, creating a token copy of it and a Map token for each Mishra's Warform and/or Worldwalker Helm you control.
4. Activate Urza's first ability twice by tapping two Maps, adding .
5. Repeat from step 3.

This engine leverages Mishra, Eminent One to animate Worldwalker Helm as a 4/4 artifact creature at the start of combat, which simultaneously doubles your artifact token generation into a steady stream of extra Map tokens. Urza, Lord High Artificer ties the board together by turning those very same untapped Map tokens into a reliable fountain of blue mana to help fund the loop. With Tuktuk Rubblefort passively granting haste across your board, your freshly copied Mishra's Warform tokens can immediately tap to duplicate themselves and keep the chain reacting infinitely.