User blog comment:Vina T/「GエR」combat gameplay video from GE-Visual 2015/@comment-25977712-20150806145532/@comment-1419424-20150806200946

"The person" was me, lol.

And it would make sense that these new devours are faster; they're the central melee combat mechanic to replace Blood Arts.

I think that, for the combo (slashing) devour, the animation depends on when in the combo it is used. The slashing and "rising" devours you're seeing are both the combo devour—at least, I'm 93% sure.