User blog comment:Witchking99/Obyrione, The Scythe Servant/@comment-26378838-20160626215716

There are a few changes to Devastating Blitz and Eternal Rest needed for them to be healthy.

All other charging abilities do reduce the caster's movement speed and remove their ability to cast other abilities and do basic attacks, it'd be inconsistent to have a champion that ignored those restrictions while still having damage boost with ther charge. Also, you forgot to add at what rate the slashes of Devastating Blitz scale with, which is important to understand the power of the ability: if it's taken at face value, this ability can easily go for 1000+ damage, which is ridiculously broken.

And Eternal Rest's death timer increase would be even more frustrating to play against than the old 1-minute vessel BS from. Imagine knowing that those 20 seconds would be the difference between the enemy team taking the inhibitor tower and taking both the inhibitor tower and the inhibitor itself, it'd be excruciatingly painful to the poor sod that took a scythe to the face. I'd suggest you to find another, much more gameplay-friendly alternative to add to that ultimate.