I’ve been enjoying this deck a lot lately in best-of-one Standard on Arena:
It’s basically Orzhov Death-and-Taxes in Standard (meaning a WB deck packed with aggression and disruption). The deck has a fair amount of obnoxious recursion, too, and Kaya herself is a total house and can act as a one-woman offense/defense team in supporting your little dudes as they kill the opponent.
I sprang for this alt-art Kaya on Arena because it rocks:
Mostly Kaya does her work with the first two abilities, but hitting the ultimate is hilarious since you can then (inexorably) cast Kaya over and over again from everywhere.