Sporoloth Ancient + Fungal Bloom + Phyrexian Altar + Kaya, Geist Hunter + Innkeeper's Talent

Sporoloth Ancient

Fungal Bloom

Phyrexian Altar

Kaya, Geist Hunter

Innkeeper's Talent

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 loop turns a simple fungal garden into an infinite engine by leveraging a clever multiplicative feedback loop. With Innkeeper's Talent at Level 3, any counters placed on a permanent are doubled, which supercharges Fungal Bloom's ability to stock up spore counters on a Fungus like Sporoloth Ancient. When you cash those counters in to make Saprolings, Kaya, Geist Hunter's active second loyalty ability doubles the token generation. Finally, sacrificing those generated Saprolings to Phyrexian Altar provides the exact green mana needed to continuously fuel Fungal Bloom, sustaining the cycle indefinitely.