Does Master of the arena affect melee splash?

I've looked all over for the answer and I haven't gotten anything really definitive. There were a few posts saying something along the lines of MotA and increased radius nodes helped him, but that could've just been the radius nodes.

There's a bunch of stuff saying if the skill has a listed range (insead of being based off weapon range) that it wouldn't get anything from MoTA and melee splash is 12. So is that a no for MotA working on melee splash...?

I think it's a no. Range vs. Area of effect radius.

If it does its not intended as its an AoE. Arena Master is really just for single target melee hits to hit from farther away (its and awesome skill just for that really)

Thats what I thought, but doesn't the initial hit of the skill rely on a melee attack on a mob?

It does, it helps generally with the initial hit as you can hit things that are further away, just not with the melee splash radius afterwards.