I remember squeeing when I realized the Hakkonite enemies leveled with you, that's also how I found the level cap (27).
I keep that save file around for Trespasser.
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Yeah, I agree with many people here, the Despair demons are a hassle, but no so much with my Male/Human/Mage, since I always use a fire staff with him.
All you need to to, damage-wise, is select the Despair demon and hold down the attack button. Energy Barrage works well here, since it never misses and can travel around obstacles.
I honestly thought Pride demons would be hard, especially with the Electric Resistance (I always lead with Chain Lightning; hits multiple targets and Shocks, which reduces magic defense). And while it made that tactic less effective, I found their size and lumbering gait led to their downfall. The trick is to take it slow, and strike when it misses, fade step when it gets close.
Revenants I found to be not TOO difficult, as long as you stay at range, again, STAY AT RANGE. My S&S Warrior found that out the hard way, and that was before Cassandra got her Templar specialization. Of course, now that my S&S Warrior and Cassandra are both Templars, I doubt demons are going to be all that hard to beat.
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But for an early game, it would be bears, hands down. Even at "low" levels, they have so much health relative to your stats/attributes, that all your attacks are like throwing pillows at it.
Even worse is when the mabari decide to join the fun. And the bandits. And the apostates. And the rogue templars.
"Hey! This mark on my hand can close rifts! I wonder if I could-"
*YOUR JOURNEY ENDS*
Or those Druffalo in Haven. I found that if you stand on that large boulder near the logging stand, you can (at least as a Mage or archery Rogue) attack the Druffalo for XP and they can't attack you. The downside is that the loot teleports inside the boulder, and you can't get to it. I must have at least 100 Druffalo hide stuck inside a rock by now.
So of course if you want the loot, you have to stay on the ground, but their stampede attack knocks you down, and keeps knocking you down until they stop or your dead.
So basically, I can lead the stampeding Druffalo to where Cullen and his soldiers are training, so they can watch me perish. After all, they would give their lives for the Herald, just as long as it doesn't involve Druffalo.