Just give it some infinite mana and a sacrifice outlet to get a lot of draw and triggers from other sources
You clearly need to be heavy on equipment to use Firion, but assuming you are, it should be pretty strong
The usual food payoffs and generators like Gilded Goose, Tireless Provisioner, and Intrepid Trufflesnout are nice, low-curve creatures that can lead into Gyome on turn 4
First, lets take a look at some the new faces on this crew
Pestilence is certainly on theme, and no one ever sees it coming
Sower of Discord is a fun one, especially if you have more than two opponents to pick from giving you a chance for some fun politicking