Similar to old Kael’thas’ cape, Fenix was given a larger hitbox for identity reasons. He has a unit radius of 1.06, the same as Anub’arak and Stitches. Hammer and Azmodan are 1.19, Zagara is 1.13, and then Kel’thuzad is 0.88. The next largest AA heroes are Falstad, Raynor, and Tychus at 0.81.
His winrate and overall performance is actually pretty solid atm for a niche hero, but I think his current hitbox leaves little room for skill expression. He really can’t dodge lots of stuff that a short range (only 5.0 repeater cannon, 6.25 phase bomb) auto attacker needs to be able to do. Case in point, this Dehaka tongue clip which has a square corner hitbox so it connects when visually its a miss
I think Fenix should join KTZ at 0.88 unit radius.