Of course, since you can only have a Tenebrium upgrade OR an elemental one, and they both do the same damage, you could really do without the tenebrium skill entirely. No reason not to stick it on your crafting bitch if you have one though.
Is there any reason AT ALL to have 5 tenebrium though? I've never seen a weapon with the requirement. If it buffs the crafting damage than it also buffs the elemental crafting damage, since they are always exactly the same for me.
