THF could use a lot of love, in order of most important -> least imo.

Lower SA/TA cooldowns, or buff Dagger DMG

Collaborator/Accomplice to feel like it does something? maybe one takes enmity/other gives? to possibly go with the dirge/sirvente change

Conspirator duration higher? 3min? prefer it lasts full 5, but reduced to just effect the THF(maybe 1 other player)

More Fights/Bosses where TH helps get drops

Perfect dodge to feel like it does something...not just a gimp invincible, maybe if it did something to counter mimics at least(like a hide aggro reset mechanic that works to drop aggro on a monster(s) )

Fun buffs to aura steal~ <3