Pirates vs. Ninjas
The pirate and ninja champions of the League start the game with a cosmetic buff informing you of their position. There is no requirement to obtain this buff other than playing one of the below-listed champions:
Akali, Kennen, Shen and Zed - Ninja buff Ninja: "This unit is a flippin' ninja!"
Gangplank - Pirate buff Pirate: "Yarr! I'm a mighty Pirate!"
Miss Fortune - Pirate buff Pirate Hunter: "Yarr! I'm a mighty Pirate... Hunter!"
We still have the whole caitlyn + vi VS jinx stuff going on.
But why was the pirates vs ninjas removed? It added flavour to the game and we haven't seen hidden passives incorporated into the game in years!