Idea Small necro changes

Firstly, give necro +3 levels upon killing another player. Gives more reward to not playing like a female dog. Incites necro to not hide somewhere and very good source of levels for mobs since the current acquisition rate is insanely low and unless you stock pile them for minutes before spawning and buff a single zombie, the others will have died already.

Secondly, stacking the "kill mobs" books depending on how many you have alive. so if I have 3 mobs alive it will give me 3 of those books stacked so it shows a little 3 indicator.

Thirdly, remove the mob type limit. Theres actually a lot of strategy potential by allowing different mob types.

Fourthly, remove the entire killstreak restriction and allow all 3 types at the get go. literally no reason to exist and would give this class much more engaging and better all-round. I think Necro is overlooked a lot and it actually pretty useful and strong even though its mostly disregarded as just a meme like with fashionista.

Fifthly, give Zombies a 0.5 (if possible) block range, 90% of the time they go near an enemy they just stand there and dont actually do any damage, baby zombies run around at the speed of light and are too fast to ever hit someone. its extremely easy for anyone, especially if unbuffed, to just stand there and hit it over and over without any sort of difficulty whatsoever. but mainly the range is to remove, or at least reduce the amount of buggyness with zombie hit detection

I think these changes with necros current setup would actually "balance" the class.