Malphite build critique?
So I've been trying out Malphite today and I did fairly well as him, I went 7/1/0 at top on my first game as him,
but I wanted to know the following,
What should his mastery set up be?
What should I max first?
And finally, is this the best build for him? (what I've been using)

I already got full tank runes btw.
I'm trying to find champs who can just carry me through Bronze, excluding Yi of course.