Sylvok Battle-Chair/Colossal Dreadmask will be a good card, but this would be a bulk buylist play and thats not always where you want to be
Amber & Amethyst This starter deck pairs loyal and empathic Amber character glimmers, who focus on supporting their teammates, and magical and mysterious Amethyst character glimmers, who can harness special powers to help you achieve your goals
If you already have that, or just want to save some Gil, you can pick up the standard edition for $64.45 , discounted by around five bucks
Some of this mechanical dissonance also recently caused a stir among Magic: The Gathering players when Norman Osborn, a human, was given the Goblin creature type simply because his supervillain name is the Green Goblin
Aside from there being some solid options for Bird cards in Bant, like Derevi, Empyrial Tactician, there are also cards like Murmuring Mystic and Flurry of Wings that can create Bird tokens for you