Originally Posted by
Tibian
THM deals with astral and umbral magic. Lets give THM a traits that boosts umbral by 20% and weakens astral by 20% and vice versa. Then lets assume that you can equip that on CNJ. Your CNJ instantly gets a 20% boost to umbral elements, while negating the astral elements. CNJ could get individual traits for each element.
Some more examples could include having traits that boost healing potency, magic accuracy, etc; while negating another aspect such as MP regen, total HP, etc. Some traits should also be prevented of being equipped if another trait is equipped.
They could also make crafting guild marks purchase special materials only obtainable via guild marks. This could be especially important for HQ formulas that will be introduced with the next patch and further down the road.