A friend of mine on FA (Johnsergal) ,asked if I could draw a transformation piece for him of his brother turning into a green Lucario, I was only too happy to oblige. I've never drawn anything quite like this before, so hopefully it turns out alright.

Part two: https://www.weasyl.com/submission/523162/lucario-transformation-gift-2
Part three: https://www.weasyl.com/submission/523165/lucario-transformation-gift-3