Since you're often making giant battlefields of creatures, protection is important, and having access to white and blue lets you run protection and counterspells to ensure they stick around
Oh, and chuck in Moonshaker Cavalry there to do your best Craterhoof Behemoth impersonation in Esper
It could be used to play fewer of your key cards at four copies because you essentially have an alternate way of getting them
Some of these commanders could be built around a rogue typal theme, especially Alela and other faerie rogues, since theres enough overlap there, but Im not including them here
We can see this being a card that becomes useful across Prismari and Lorehold decks , which is the beauty of how the Strixhaven College system works, provided that mono-color cards don't feature specific keywords on them that limit their usability and adaptability