Weaponsmith Archive

OKay, so I'm new to the weaponsmithing profession. I just recently made master and I've purchased several Bile Soaked Rancor Tooths. Now I know from the postings here that they're used in sword cores, but how? I've tried to build both regular and enhanced sword cores but I haven't seen the option to add an ingredient other than the metal/dolovite iron. After the items were made I tried to drag n drop the tooth on the sword but that was a no go too. Can someone please explaine the steps in combining these two items?

They replace the core, use them when you are making the swords

Yv
Undead Warrior
Alchemist
Malganis Server
World of Warcraft

thanks