the raptor and gilded griffin deal neutral damage to vanaduke, as if I had shot a slag walker (I mean the PIERCE damage is neutral to him, not the bonus)
(this has probably been said before) the magnus charge attacks push enemies backwards to where theyre facing (shooting one in the back pushes it towards you)
the magnus problem I can get around but really, the raptor doesnt even deal the correct damage to the enemy I got it for
edit: fixed it so people who skim over it will understand, added gilded griffin
Unfortunately Vanaduke is not affected by Fiend bonus UVs
From http://wiki.spiralknights.com/Vanaduke
"While considered a Fiend, he has unique damage resistance: he is slightly weak to Piercing, slightly resistant to Elemental, and neutral to Shadow until his final phase where he gains complete immunity to Shadow. In addition, he does not take additional damage from Fiend damage bonus UVs."