OK. HERE WE GO! (..i didnt intend to write it here, but i must now)
It wont be after balancing.
how so?
Actually, they would still remain the stongest minions overall, but they would be fixed/balanced better so they are not that OP early game, but have better scaling late game.
Erebus's minion build IS overpowered for about 5 levels, and then it gets pretty weak as people get their final ranks of AoE. I don't know what the solution is, but basically minion builds just have really wonky scaling and it should be addressed sooner or later.
And you'll see now solution you're looking for (but here i will adress only nightwalkers though)
@bobek: if you weaken the minion build of erebus than the last usefull minion build is gone. no one would ever play a minion build again, and all agenerals will be played like assasins, except qot maybe.
That's not only the problem of Erebus minions then, as you say here, but problem of all of them (and i know that also, & i know everything can be taken care of. Its not that hard, i dont know why you ppl always think its hard to make smth better, and never try hard to find the best solution. It's not that hard!) Secondly, i would not weaken erebus minions, i would just make them more balanced, and in the end even better than they are now (and would do that with all other minions), but they have to be fixed! It's unfair how good they are early game. Just read, you'll see.
i really don't get why people thikn erebus minion build is overpowered. palyed against and as erebus noumerous times and i absolutly don't find him overpowered. learn how to fight each build!
I know how to handle them as well, but it is not the problem, problem is that they are unfair in comparison to other minions! And after 'the balancing', they should ALL get additional buffing so they can scale better.
btw. when erebus minions are strong erebus himself is usually very weak.
And, i noticed that myself, and that is other problem, which requires additional balancing, which i'm not addressing here. Let's go step by step!;
I shall compare nightwalkers with other minions:
Lord Erebus starts with passive(non skill wasting) ability to have 2 minions from dead creeps. Cost 0 mana. No other dg have that. THEN, after putting JUST ONE SKILL POINT into coven, he can have SIX minions!!! NO OTHER DG CAN DO THAT!!
Let's compare that with Oak; he put one skill point in Raise Dead Ward, and he can have max THREE (spirit)minions!!! And that only after spending 200 mana for putting the ward. Erebus is again mana free. (and also, if i want to go to details, Spirits have 30% chance to become, and nightwalkers 35% chance. I'm not even mentioning 100 more health nightwalkers have, but i'm fine with that)
Next, if we compare that (1 skill point spending) with other dg's minions; Sedna's Yetis, and Qot Shamblers, You'll notice that they can summon/have only ONE minion, and it also costs much more mana than oaks ward! (and if they want to have 2 minions they have to spend another 550/450 mana to have so).
DO YOU CALL THAT BALANCED???!!!
I personaly think that SD/GPG staff have made a mistake - an error, human error, non voluntary error - when they have made the Nightwalkers like that. It is totaly unreasonable, and for me hardly to believe such a thing could ever happend in games like this. But it did! And still now it lies unfixed, unbalanced.
Ppl, we have to solve this, we have to urge this to be fixed in a next patch (not the 1.2), with a simple solution, but also a little complicated things to be done to make it perfect (and by that i also mean to balance all other minions better).
The solution is this:
Let one point in coven increase the number of nightwalkers to 4. Next ones to 6 and 8, and finaly the 'Army of Night' to 10!, as it already is actually. So we would have 2/4/6/8/10 and not 2/6/8/10/10 !! (number 2 being not skill required nightwalkers ofc) This scales well, and is completely fair to other dgs minions (Yetis, Shamblers & Spirits)
I still cant believe they didn't relise the game like that in a first place.
I want no argue about this, it is the way it should have been from the start!
> Imagine that it was (!), & let me ask you then: would any of you ever say that Nightwalkers are weak and they need to be buffed in a way to increase their number in coven from 2/4/6/8/10 to 2/6/8/10/10 ?!!
I think not!
Even if they are the weakest minions, weaker than Shamblers, and that Erebus is the weakest dg of all, i would still say the same thing! BUT would also add: 'Now, buff HIM, and his minions, but in another way!(not with unreasonable scaling numbers of them!)'
So, if with this change (and i dont even call it a nerf!!; i call it mearly balancing (the one that should have never been needed to do) the nightwalkers become 'too' weak (and i think they won't, but it might be that:
@bobek: if you weaken the minion build of erebus than the last usefull minion build is gone. no one would ever play a minion build again, and all agenerals will be played like assasins, except qot maybe.
), then, as i have said, we should buff them in another way, and also all other minions (so that nightwalkers are not the only one that are usefull ( - i'm sick of assassins general btw)), so that they are all usefull.
I dont want to talk about that now, i already said a lot. I think you are smart enough to think about that alone without me. 
I can just say, for example, that conversion aura should get buff, atleast from +100/250/400 hp to +150/300/450 hp. And i have plenty other ideas, but i'm really tired now (it's 2 am here!), and i'm going to bed.
there you go; a wall of the text in a completely unappropriate thread.
I'm sorry op.
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