There is only one trainer in Tribunal, and he does not appear until the quest An Assassination Attempt, well into the Main Quest.
A full list of trainers in Morrowind is available here. There is a list of all services in Mournhold here.
| Name | Location | Skills | Other Services |
|---|---|---|---|
| Bakh gro-Sham | Mournhold, The Winged Guar | Acrobatics (86) Light Armor (86) Sneak (86) |
none |