In order to unlock the Trial of Fervor, you need to swing by Jakob’s Manor and pick up the quest. Locationīounty Hunter drops off the Hag of Fervor in the Trial of Fervor. It only got stronger in Guns, Love and Tentacles, where Fl4k can max out The Most Dangerous Game in a Stalker build.
It’s not as overpowered and gamebreaking as the best mods for Amara or Zane, but it is probably the best thing Fl4k has access to overall, and it definitely provides a nice unique passive bonus, while also buffing up his Frenzy and Hunter’s Eye skills, which are solid skills. Additionally, it treats bosses as all different enemy types that Fl4k gets passive bonuses against, meaning he gets critical hit damage, armor damage, damage resistance, corrosive damage and movespeed while attacking bosses. This is because, similar to Zane’s Seein’ Dead mod, it activates his kill skills randomly while dealing damage. The Bounty Hunter class mod is widely considered to be the best option for Fl4k when it comes to mods.