Sporoloth Ancient + Fungal Bloom + Phyrexian Altar + Winding Constrictor + Kaya, Geist Hunter

Sporoloth Ancient

Fungal Bloom

Phyrexian Altar

Winding Constrictor

Kaya, Geist Hunter

How it works

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn.
2. Activate Fungal Bloom by paying , putting two spore counters on a Fungus you control.
3. Activate a Fungus by removing two spore counters from it, creating two 1/1 Saproling creature tokens.
4. Activate Phyrexian Altar twice by sacrificing two Saprolings, adding .
5. Repeat from step 2.

This clever green-and-black engine revolves around generating an exponential surplus of fungi and fodder, supercharged by Winding Constrictor to accelerate your counter production. With Kaya, Geist Hunter doubling your token output, every cycle of Fungal Bloom's mana-invested counters feeds directly into Sporoloth Ancient's ability to spawn multiple Saproling tokens. You then feed those tokens into Phyrexian Altar, recycling the sacrificed creatures into the exact green mana needed to continuously fuel Fungal Bloom and keep the loop running infinitely.