[Classic] Hard Personal Goals?

[Apatheist]

But what about if you just grind high level mobs to get good XP

If you're going to grind mobs to level as a boxer you might as well grind elite mobs inside dungeons. Complete dungeon quests while you're there, get more drops and you can reset the instance whenever you want. Keeps you geared as you level so you can move on to the next dungeon. That's how I do it.

You have to remember most quest items in vanilla are not shared with party and the volume of items required for each quest is usually higher. Collecting 15 crocodile wings will take hours on 5 characters even if you're lucky and there are no other players competing for mobs.

Also, if you go with warlocks you'll want to add one healer to that mix so you can do dungeons. 4 Warlocks and a priest is going to be a much stronger comp than 5 warlocks. Holy priest with spirit of redemption and soulstone is pretty potent. Heal until you die, 10 seconds of free healing, resurrect, die again, 10 more seconds of free healing.

Priests also get prayer of healing which heals your entire party plus their pets at the same time (9 targets.) No other heal does that. Pretty useful when you're voidwalker tanking dungeons.