To make an imbuement with this system, you do so by creating it in lua like so
--- Imbuement(type, value, duration, decaytype)
local imbue = Imbuement(IMBUEMENT_TYPE_DEATH_DAMAGE, 15, 65, 2) -- decaytype 1 for equipped, 2 for infight, i forgot to register their enums :D
The item must have slots...