>higher AP and Speed
>Can disrupt Ruby's semblance powers
>Black blood heals and tanks better than Aura
>Can fly
>Can detect Ruby's soul to negate even the smallest possible advantage she could get with the use of her speed semblance
>Can drive Ruby insane with Madness Soundwaves
The only advantage Ruby has are his ranged attacks (that even in RWBY are complete fodder) and the potential effects of the silver eyes that might just get negated with Soul adagio or Soul Hack.