The color of Egoism. Is it White?

I am developing a character for a work of fan fiction in the Magic The Gathering universe and I have the main antagonist set as a mono-white character who belives that the only thing in the multiverse that can give meaning to the chaos is his decisions.

He is strong and desires to rule and sees other planeswalkers as weak. To him Planeswalkers are the ultimate superpower and should lord over the planes like Kings and Gods. The fact that most others don't do makes him belive that they lack the stength or will. He would prefer if walkers leaned into their nature and he would love to see others aspire toward his aspirations.