An important thing to note is that Limited archetypes are just recommendations for the kind of deck to build with those colors, but not necessarily a requirement
Since the deck is a representation of the spells in a wizard's mind, the sound of the Millstone's grinding causes people to literally go insane
You can effectively, with enough blink triggers, bounce him every turn and blow up whatever permanent you dislike the most
Cards with the squad mechanic play double duty in this deck because the mechanic is a mana sink, and youll make tokens that are copies of the squad creatures
#5: Jegantha, the Wellspring Jegantha, the Wellspring is actually very similar to Keruga, the Macrosage, with the added bonus of being much easier to play in five-color Commander decks, where it shouldn't take too much work to meet the "no more than one of the same mana symbol" companion restriction, in that it already has an easy home in Niv-Mizzet, Reborn decks
It doesnt take much for three-mana planeswalkers to see play, and I think Jace can find a home in multiple decks in both maindeck and sideboard capacities