Locke straddles two worlds; literally. He's an exorcist with a keen knowledge of the occult; someone who exists in both the material plane and a spiritual realm beyond our own. But he also does so in terms of design: his kit, while hyper-mobile, plays like a traditional assassin, reliant on a strong early game and skillful stacking. Then you see his ultimate, where he throws out an AoE slow, but for every champion killed within it, the execution cap increases permanently for the rest of the game. There's no cap; you could theoretically reach 100% execute. It's a prospect that's largely a pipe dream, but it exists.