Radagast, Wizard of Wilds + Temur Sabertooth + Phyrexian Altar + Mycosynth Golem + Tangleroot

Radagast, Wizard of Wilds

Temur Sabertooth

Phyrexian Altar

Mycosynth Golem

Tangleroot

How it works

1. Cast Mycosynth Golem by paying 0.
2. Radagast and Tangleroot trigger.
3. Resolve the Tangleroot trigger, adding .
4. Resolve the Radagast trigger, creating a 3/3 Beast creature token.
5. Activate Phyrexian Altar by sacrificing the Beast, adding 1.
6. Activate Temur Sabertooth by paying 1, returning Mycosynth Golem from the battlefield to your hand.
7. Repeat.

This loop relies on reducing the cost of Mycosynth Golem down to zero using its own affinity for artifacts, allowing you to cast it repeatedly for free. Every time you cast it, Tangleroot rewards you with green mana and Radagast, Wizard of Wilds triggers to forge a fresh 3/3 Beast token. You then feed that token to Phyrexian Altar to generate the necessary generic mana, which pairs with the green mana from Tangleroot to fund Temur Sabertooth's activation—safely returning the Golem to your hand so the whole cycle can begin anew.