The Master, Formed Anew + Ruthless Technomancer + Biomancer's Familiar + Dack's Duplicate

The Master, Formed Anew

Ruthless Technomancer

Biomancer's Familiar

Dack's Duplicate

How it works

1. Cast The Master by paying .
2. When The Master enters the battlefield, it triggers, causing you to sacrifice Dack's Duplicate and create at least two Treasure tokens.
3. Activate a Treasure by tapping and sacrificing it, adding .
4. Activate The Master by paying and sacrificing a Treasure, returning Dack's Duplicate from your graveyard to the battlefield as a copy of The Master, which causes the Dack's Duplicate to be a copy of Ruthless Technomancer.
5. When Dack's Duplicate enters the battlefield, it triggers, causing you to sacrifice The Master and create two Treasure tokens.
6. Activate a Treasure by tapping and sacrificing it, adding .
7. Activate Dack's Duplicate by paying and sacrificing a Treasure, returning The Master from your graveyard to the battlefield as a copy of Ruthless Technomancer.
8. Repeat from step 2.

This clever loop hinges on recycling legends by making them wear each other's faces: **The Master, Formed Anew: Body Thief** enters by exiling a target like **Dack's Duplicate**, which then re-enters the battlefield ready to copy **Ruthless Technomancer**. Once that Technomancer is in play, its sacrifice-and-return ability is ready to be unleashed, made all the more efficient by **Biomancer's Familiar** slashing the activation cost down to just a single mana. By continually cycling the Master and the Duplicate back and forth between the battlefield and the graveyard, you sacrifice one to fuel the other's entry while generating an endless chain of entering, leaving, and dying triggers.