The Master, Formed Anew + Ruthless Technomancer + Biomancer's Familiar + Phyrexian Metamorph

The Master, Formed Anew

Ruthless Technomancer

Biomancer's Familiar

Phyrexian Metamorph

How it works

1. Cast The Master by paying .
2. When The Master enters the battlefield, it triggers, causing you to sacrifice Phyrexian Metamorph 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 Phyrexian Metamorph from your graveyard to the battlefield as a copy of The Master, which causes the Phyrexian Metamorph to be a copy of Ruthless Technomancer.
5. When Phyrexian Metamorph 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 Phyrexian Metamorph 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 loop relies on an infinite recursion of sacrifice and resurrection powered by Ruthless Technomancer's ability, which is discounted thanks to Biomancer's Familiar reducing its activation cost down to just one mana. By alternating the targets with The Master, Formed Anew and Phyrexian Metamorph copying the Technomancer and each other as they cycle between the battlefield and graveyard, you endlessly harvest sacrifices and death triggers. Every iteration fuels itself through the Treasure tokens created upon entry, keeping the engine running indefinitely.