Sorry I can't give you a name as I am not around my gaming computer, but it is the same NPC that sells all the other level 20 "special" abilities. So maybe ask your lvl 20+ friends where they got theirs? Post the NPC name and zone back here when you find it - or if someone else knows :smileywink:
Im going completely off memory here but I think it was a guy in NQ near the SQ zone door standing by a tree. his name is Trainer something. Do your tracking and look for a guy with Trainer as first name.
I found him yesterday. His name is Trainer McBresler, he's standing by a tree near the entrance to the Temple of Life in North Qeynos. Have fun!
I found it on Trainer Guillot? (he is the froglok) in the Elddar Grove #12 on map; http://www.gry-online.pl/eq2/maps.asp?ID=8