First Immortal Gardens making pathing much easier to see by means of round and cubic trees without much leafage.
Now Dark Reef actually has performance advantage.
Not too much on topic - just a rant - but the whole cosmetic items situation seems to get out of hand as well. My favourite examples are Juggernaut in a completely different colour set-up and Timbersaw looking like Axe.
I wish I could disable cosmetics items that got too much out of hand : (