Which Masteries are best on Azir?

[](http://img13.deviantart.net/c776/i/2016/109/1/1/azir___league_of_legends_by_oma_om-d9zivs7.jpg) So I'm learning Azir and I have made 2 mastery trees for him but I'm not sure which is better for him. A: https://i.gyazo.com/ac3848fbb8554243a4e5689fd65c74b7.png B: https://i.gyazo.com/66de462300b055af514753a5cb1e843a.png If anyone can tell me which is better for him or if there is better one than what I have that would be great ^^
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