Skills aren't super easily copied, which version of L2 are you working on?
Here's the usual process:
1. Find and copy skill entry in skilldata.txt, give new ID
2. Find and copy skill entry in skillgrp.dat, give same new ID
3. Find and copy skill entry in skillname-e.dat, give same new ID
4. Find and copy skill entry in skillsoundgrp.dat, give same new ID
5. Generate the skill entry in skill_pch.txt. This follows a specific algorithm, it isn't as easy as npc_pch or item_pch. Cubafull shared one for HF, you can find it here:
