Cards like Eerie Interlude let the player draw lots of cards with Arcades' trigger to keep the hand full, and they can protect the defenders from effects like board wipes, too
I personally think this deck is more Johnny because at first glance
Dark Confidant, or 'Bob' as it's often called by the Magic community, was once considered among the best MTG cards of all time
Challenge 6: Don't Forget the Lands
Being single color means it can go into more decks and even when its not convoked, it has a perfectly reasonable casting cost for exiling any nonland permanent
Furthermore, since Baeloth forces all of your opponent's creatures to attack, he then leaves them wide open to swing in for ten damage himself, potentially knocking an opponent out through commander damage