That set of circumstances tend to make white one of the weaker colors
There are so many original characters, creatures and concepts to cram in, and only so many existing cards that are a thematic fit
Throw in a Seedborn Muse and your opponents will fall for this Boros cards charms
The glowing sword in the Prophecy Destroyer's hand, meanwhile, adds an edge to the character, reinforcing its threat
However, Xavier is a little better because he doesnt just add a counter
Kirlia does have a stage 2 evolution in Gallade (and Gardevoir which isn't in this set) that you'll probably want to use with this Pokemon line but since I haven't reviewed that card yet, the strategy below will act like Kirlia is the final evolution in this line