The Bonedancer level 40 Bone Army pet, Summon Bone Captain (Dread Archer), currently does not have any caps on its damage. Allowing for it to hit for extremely high numbers in specific situations.
Level 1 Mob
Level 1 Training Dummy
After it procs weakened armor, the numbers go negative.
Level 27 Mob, with Juggernaut 5.
Against a level 1 player. This did not kill him, he remained at 100% hp.
Level 1 player after weakened armor, this did kill him.
Video of the damage against a level 1 player
https://www.youtube.com/watch?v=7JXinPGQblA
Also, Str/Con buff on the Dread Archer reduces its damage significantly. Str buff does not lower damage, Con buff does not lower damage. Against a level 50 training dummy, the damage goes down from 173 to 139 with Str/Con buff.