The Visitor Event Guide/Discussion.

The dawn warrior aliens deal upwards of 11k with their soul driver. Luckily they're freezeable, but you'll still get hit if you weren't prepared for it. Even if you freeze it, if it started the animation... you're likely to be dead as a ranged attacker. My aran with 12,035 HP after hyper body (lvl 130), can barely survive most of the non boss stages. The easiest part to deal with is the clerics with their 2k damage. The gunners deal around 6k. The warriors near 7k maybe 8k. I definitely die at the aran boss and evan boss if i try to take them head on.

The dawn warriors actually deal 7.8k- 9.3 ish dmg depending on if they use rage or not. But ideally you should have 10k hp to survive those. Bully does 10k+ dmg so you need about 11k to survive, The aran does around 14k dmg normally and evan boss is something around 8k-17k depending on bump + mag atks (theres 2 types of magic atks, the explosion and the fire, explosion does 17k dmg).