Phantom Steed + Godo, Bandit Warlord + Wormfang Drake + Leyline of Transformation + Tannuk, Steadfast Second

Phantom Steed

Godo, Bandit Warlord

Wormfang Drake

Leyline of Transformation

Tannuk, Steadfast Second

How it works

1. Declare Phantom Steed and Godo as attackers, triggering each of their second abilities.
2. Resolve the Godo trigger, untapping all creatures you control and causing you to get an additional combat phase after this one.
3. Resolve the Phantom Steed trigger, creating a token copy of Wormfang Drake.
4. When the token Wormfang Drake enters the battlefield, its first ability triggers, exiling Godo.
5. At the end of your combat phase, Phantom Steed triggers, causing you to sacrifice the Wormfang Drake token.
6. When the token Wormfang Drake leaves the battlefield, its second ability triggers, returning Godo from exile to the battlefield.
7. When Godo enters the battlefield, its first ability triggers, allowing you to search your library for an Equipment card and put it onto the battlefield.
8. Repeat each combat phase.

This loop relies on Leyline of Transformation to make your entire team Samurai, which ensures that Godo, Bandit Warlord's combat-untap trigger hits your Phantom Steed and other pieces. With Godo bringing free Equipment straight from your library and Tannuk, Steadfast Second granting haste to keep everything moving, you initiate an endless chain of attacks. During each combat phase, Phantom Steed spits out a token copy of Wormfang Drake that temporarily exiles Godo, only to return him when the token dies at the end of combat. This repeated exit and reentry triggers Godo over and over again to fetch every single Equipment in your library while generating infinite combat phases and triggers.