Idea Necro (CTF) Class Improvement and Suggestion

Hi. One thing I have noticed is the class, Necro on CTF is very UP (under powered). Here are my reasons why:
- Zombies move too slow to even get close to the player
- Zombies have very low health and can easily be killed without them hurting other players
- Zombies only do half a heart damage if they do in any case attack a player after slowly walking up to them

I feel that the Necro class needs to be a bit more "powerful"; the zombies are very vulnerable and it's almost impossible (super rare) for a Necro's minion (zombie) to kill a player. The zombies are very useless that Necro is almost the exact same class as Heavy, only that they wear weaker (different) armor, which is iron armor and gold chestplate instead of full diamond armor, this is because the diamond pickaxe has the same strength as the diamond sword. I heard the mobs get more powerful as they spawn, but even so the mobs are too weak to even do any damage to a player.

I also heard that if the Necro's minions DO kill players, they can upgrade and change their spawner to another and more powerful mob (skeleton, spider or blazes I think they were). If this is true, how often do we come across Necros who have a different mob spawner beside zombies? If the answer to this is rare, that may explain my point - the zombies aren't fast enough to attack a player and when they do, they don't deal enough damage to the player.

So to conclude, my suggestion is improve the following abilities of Necro:
- Zombies could be a bit more faster at the start, then slowly gets more fast as the spawner evolves the minions.
- Zombies could have more health (i'd say begin with at least 6 hearts, then the maximum health as the minions develop would be the same as player health <10 hearts>).
- Zombies could do more damage (I would suggest at least 2 hearts of damage instead of 1/2 a heart so it isn't OP and UP, both equal)

Note to add: Some CTF games end too quickly, meaning the spawners wouldn't even have time to evolve the mobs and make them more powerful; at the moment the minions are very weak and even when they slowly get more powerful (takes too long for a 30-40 minute game), they don't do much damage towards the other team. Maybe the time of evolving the mobs could be quicker, or we wouldn't see any difference.

Note 2 to add: This suggestion is not for me as I don't play Necro. This is just a future suggestion to help improve the class and for current people who play Necro due to its minions being UP, even if lots of the minions spawn; they're still UP if they can't even get close to the player and attack, and only do 1/2 a heart damage.