Bray Wyatt was interviewed by the Miami Herald during Summerslam weekend and when asked about his in-ring character, he divulged an interesting little tidbit. He believes it's necessary to keep one's character always evolving, and he learned that bit of advice from none other than The Undertaker.
“I think the thing about keeping your character fresh is when you change as an individual you have to flow with it. There are times where fans don’t understand that change is inevitable or that changes are done too fast. They say, ‘We like the way you used to be.’ Or they say, ‘We liked what you did then.’ You can’t stay the same. As you mature as an adult, you find out you have to keep changing in this business. It’s something The Undertaker laid on me.”
Someone needs to lay that "evolve the character" piece of advice on the writing staff, because every time Bray Wyatt comes out to challenge another rival to a new feud, giving the same promo about how he is a god and his opponent is "just a man," then proceeds to go out and lose the feud (again), his character becomes more and more stale.
The Undertaker, meanwhile, went through several different iterations of the character, from the purple-gloved mortician, to the dark necromancer of The Ministry, to the American Badass biker version, to Big Evil, to an undead cowboy in a floor length leather coat and MMA gloves.
Wyatt has dreadlocks now. He didn't use to have those.
Of course, Wyatt worked with The Undertaker at WrestleMania 31, then again in 2016 when the Wyatt Family faced off with Taker and Kane (the Brothers of Destruction). Wyatt lost both feuds.
You can read the full interview at this link.