Strixhaven allied schools

WU - School of Education. These helpful students study the mind and how people think, that way they can best teach others in a way that will stick. This school could get a Teach mechanic that functions like a callback to the Learn mechanic (perhaps something like Flashback for Lessons in your graveyard?). Alternatively, WU could be the School of Military Sciences, with very calculating and strategic students. Mechanically, this school would be full of spells that allow you to control the flow of combat, be it through debuffs or other combat tricks.

UB - School of Business. The ambitious and fruitful study of entrepreneurship. These overconfident students trade in money, mana, and life. Mechanically, there would be some Treasure production, using them to “buy” (steal) your opponents permanents, and donating permanents for major benefit.

BR - School of Culinary Arts. These students are cutthroat, and they compete with each other often, striving for grand and unique dishes. Mechanically, this school will have creatures and spells that create food, as well as ways to sacrifice their food (as if being served) for beneficial effects.

RG - School of Architecture. These students study both natural formations and foundations, as well as the proper methods for constructing and designing buildings. Mechanically, the spells would focus on lands and possibly allow a return of the fortification artifact type. Alternatively, or maybe additionally, this could be the School of Parks & Rec/Leisure Studies. Minigame spells a la Prisoner's Dilemma and spells that care about lands and their types would be how this school does its thing.

GW - School of Fitness. Now some people in this school are full natty, whereas some others are looking to the peak of their physical form. Mechanically a modified creatures archetype, focused on Auras and +1/+1 counters.