I’ve tried to find similar topic, I’m sure it exists, but I just couldn’t do that 
. So lets continue here.
I’m pretty sure that 5 skills is ok, because …
- it’s enough to make player actively involved to the process - action. With current 4-10 sec skill cooldowns (and one base attack skill) player is able / must perform an action every 0.8-2.5 sec (in average). Even using all / most of them in combos makes that time increased to 3-8 sec, which is not to big in my opinion. Though I think there IS one problem with the necessity of such time management and comboing for a player, as the game is not very challenging sometimes. But I think it’s a problem of polishing enemy mechanics and separated game parts - not skills.
- it’s enough to create decent amount of combinations - builds. But yes, I must admit that there are not so many “base” skills - 1-2 for each build. But still it’s a problem skills’ overall diversity and their amount.
- it’s enough to make every combination unique enough. Well… not enough sometimes. But the argument is the same as previous.
But what I actually agree with is that there are to many passives. In fact, I don’t like complete passives at all. That’s why I suggested active part for Summon Bear and Fire Shield (before TP-tree was implemented 
). Companions’ actives are already implemented. Fire Shield rework is also in developers’ mind.
I mean, if there will be no complete passives, their amount won’t be a problem, I think.
Totally agree. But it’s not a problem of skill amount on the panel… again .