It's an excellent multiplayer mechanic because it allows for creature decks to avoid kingmaking scenarios, or purposefully engage with them in order to play politics or create periods for player interaction
Elves are traditionally green creatures that rely on power in numbers and/or produce extra mana
Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)
Trainer sprites are based on their illustrations in the Modern Style while the Legacy version has classical sprites
Silver Shroud Costume equips for three and then equip when it arrives and then gives it shroud for the turn and then it cannot be blocked forever
I especially like that you have your own Secret Base, which you get a bit later in the game