Is this for a PC or an NPC? I did a search for a F9/T11 and didn't get any results.
If this is for a PC, I'd also consider a lvl 10, 11, 12 Duskblade.
If this is for an NPC (villian) 4e really, really hit the mark on creating villians. Don't have heart palpatations about following the building rules to the letter. What level villian is it? (Sounds like 11 or 12) What type of villian? (Sounds like skirmisher) Is it elite, solo, or minion? (adjust accordingly, sounds not, but MAY be elite) There's some stats. Slap an appropriate "one shot" attack onto him that's represented by his stats, magic, or standard 1e build, and you're solid. I think you'll find if you lay these numbers against 1e, 3e, or 4e, they'll work pretty surprisingly damn good, AND take about 30 seconds to concoct. Conversion DOMINANCE!