Guild Wars 2

Minion stats are based on your level and minion specific traits, not your attributes. Your pets aren’t really tanks, and you should expect them to die, especially in dungeons. The only minion I’d really consider reliably durable is the flesh golem.

Minions tend to be weak until about level 25-35, then they pick up in effectiveness due to the traits you can get for them. If you’re going for a pet build most of your points go into the death magic tree. I’d also recommend to get at least 20 into the blood magic tree for vampiric minions. (30 if you want your minions to draw conditions off of you).

the necromancer minions only get stronger through your levels and the minion specific traits. (training of the master, flesh of the master, minion master, ect) If you’re looking to figure out what stats you need the most, just base it off of your weapons. (I’m going to assume you’re using a staff with your minion build).
axe+warhorn? power
scepter+focus? condition damage
dagger+[whatever]? power
healing power, vitality, and toughness also all benefit you greatly. The staff gives you a 6 second cooldown heal which is potentially your strongest spell. In PvP vitality and toughness are extremely important. You need to be durable so that enemy players can’t simply rush you down to eliminate your minion army. Not only that, but since a large portion of your damage (minions) is flat, you won’t benefit from damage boosts as much as other classes.

This game has “end-game” in the form of:
-Farming for legendaries
-Orr
-Explorable mode dungeons

there is no “10 man+” group raids. The closest you can get are meta events in specific zones.

bring a condition removal and increase vitality. You pretty much choose between resisting conditions or flat damage when it comes to vitality vs toughness.

If by pet build you mean minion master, staff is by far the best. It’s the only necro weapon that allows you to heal your minions. (on a really short cooldown too, like 6 seconds). your secondary set is really up to you. I personally like scepter/focus for single target ranged damage.