10 Werebear Werebear isn't the most impressive mana dork in Commander, nor is the threshold power bump that important in the format, but when your commander wants you to commit to a typal theme, it's best to play as many on-theme creatures of that type as you can
This accelerated your chances of casting extremely powerful cards very early in the game
Toothy, Imaginary Friend and Pir, Imaginative Rascal fit right into the theme as well (although Pir is a Human and cant be mutated)
It typically only sees play in Commander decks, useful in the late game when you have access to a ton of mana and a graveyard full of creatures
Arcane Signet The ultimate turn two play While were loath to follow up on one very good artifact with another, Arcane Signet is just that good
These were named after the only four-color cards in Magic thus far, the Nephilim from Guildpact