Prerequisites
- Pir, Imaginative Rascal on the battlefield
- Sporoloth Ancient on the battlefield
- Tainted Observer on the battlefield
- Ashnod's Altar on the battlefield
- You control a creature with at least three spore counters on it
Steps
- Activate a creature you control by removing two spore counters from it, creating a 1/1 Saproling creature token
- The Saproling enters the battlefield, triggering Tainted Observer
- Holding priority, activate Ashnod's Altar by sacrificing the Saproling, adding
- Resolve the Tainted Observer trigger, causing you to pay to put two spore counters on any creature you control
- Repeat
Results
Required Cards 4
Pir, Imaginative Rascal
Legendary Creature — Human
Sporoloth Ancient
Creature — Fungus
Tainted Observer
Creature — Phyrexian Bird