BUG: if you have the UMD to use a Deadly weapons scroll but you only have two handed weapons or handwraps, you cannot cast it from the scroll onto your weapon because you have to equip the scroll in your hand to use it. This is applicable to any weapon enchant from a scroll onto a two handed or handwraps weapon.
SOLUTION: Allow scrolls to be used from inventory, with an appropriately increased activation time, to balance out the fact that you don't need to equip them anymore. This simple solution would improve QoL for soloists who use a lot of UMD.
ALTERNATE SOLUTION: As an alternate form of casting, have the weapon enchantments create a tradeable clicky that is destroyed on logout.
SECOND ALTERNATE SOLUTION: Make a purchasable item at all scroll vendors--a podium--which casts the spell of whatever scroll is put into it, but that the podium mimics the UMD and class restrictions of the inserted scroll and that SIGNIFICANTLY increases the cast time by 500% or more. The inserted scroll is also destroyed on use, and the podium will not accept a stack of scrolls.
LAST, ULTRA-COMPLEX SOLUTION: Make Two-Handed Weapons occupy the off hand on the character model, and allow scrolls to be equipped in the main hand under this condition.