The other seven three color pairs are easy for me
Mardu is war
Naya is big monsters
Jeskai is USA
Jund is the food chain
Grixis is Bad guys
Temur is grow fast
Esper is sneak and connive
But the other three have no imagery/association to me. I’d be curious if anyone has an association for them similar to what I’ve listed here.
First three letters of Abzan are a,b, then z. Then a again. Like a life cycle. You’re born, you grow, you die, then you get resurrected by one of Abzan’s many graveyard tricks.
Bant is like “banter”, like friends do. It’s the friendly colours of white, blue, and green. It helps that my group hug and pillow fort decks are both bant to help me glue that association together.
Sultai starts with an “S”, hissing like a snake. Vraska has snake hair and she’s green/black, but sultai also follows the S with a U to remind you blue is in there.