Idea Necro Rework

So as we all know necro is broken and needs a big fix so I've seen an idea awhile ago were the necro collect souls for kills maybe make necro a roaming def class as the necro gets kills it gets stronger as maybe getting speed strength jump boost or better armor and sword and caps after awhile or the necro has a tower like it already has but as people are killed near it like a 10×10 anyone on your team will get buffs if they are in that radius and the buffs get stronger for each kill added to the tower making it almost force the flag holder have to go around almost like funneling the flab holder to go on a route they dont want to go. (Or instead of a tower just make the necro the tower so it's a mobile one) this could help with the instant grab stuff and counter it a bit