I believe it would be very cool to have weapon variants being possible to be bought with Beast Blood or XP with the weapon
Here are some of the effects including pros and cons.
Katana.
Smaller hitbox with a thinner blade, does less base damage but has innate BLEED effect.
Could have a upgrade; includes sheathe that increases the damage for total time inside sheathe on next hit, capping (similar to winch crossbow upgrade)
Multishot/Extra ammo crossbow.
Would have 3-5 arrows that deal less~similar damage that could be rapid fired but no longer has AOE.
Could have an upgrade for a toggle switch to fire all arrows stored at once like a shotgun.
Staff.
The staff would be able to have innate spells sort of like incantations, where whichever spell selected would have the effect put onto the orbs and melee attacks.
Ex: Having the poison effect selected would make it so everytime you fire a direct orb shot on an enemy, poison would be applied to that enemy alone, same with fire. This includes melee attacks as the staff would have a way longer range compared to the default wand. Thunder would probably apply true stun for 0.2-0.9 seconds.
Obviously no longer being able to cast large damaging spells but having base attacks be stronger.