As iss you can go either dual sword/blunt or 1-handed sword,blunt + shield.Heavy armors or light. For debuffs land you need as much as possible mental attack. Epics, coc jewels, agument, mental trait, etc.
Domi has change a lot vs old Domi. New pasives,new skills and totaly diffrent gameplay. At begin u use hvy ,1hand melee blunt plus HPsa in it +sigil Later u may switch to light +8 for faster reuse of skills. As Domi atm u can buff only clan,in incoming updts it will change. Also u must remember ure an Support not DD,therefore u help to pretect healers by some healing and casting Angel Touch. And dont worry about debuffing to much,at pvp is close to imposibility. At pve is easy and lands fine,so u dont need to power it up.
What debuffs on iss are mental? SWM song of silence is mental. suspension ive heard its mental but havent seen any info on it. Oblivion maybe? some de-targets are mental but tyrrs de-target isn't. What else?
on domi silence is mental based, and maybe cancel/oblivion (which is not 100% proof info) everything other isnt affected by mental (or either my noob 104 with full mental jewels fails more on toons with gear of 2b tops, than on high end ones(without being full mental on me in open) mental trait maybe adds to landing of all debufs (but mental trait has more in it than just mental (like areal yoke/fear and etc) for author: if u dont have cp then dominator will be pain in the *** to xp because cant buff random ppl (not like pre-god chronicles can buff party+clan) also all isses are now more melee based chars (like old bd/sws) and there are better and more desirable options than domi (prp for 101 skill, bd good in skiller party(archers/dagers), sws is awesome in mage party) search some info on next update where isses get rework and try building your char acording to it, if u will see that domi is atractive in next update u can exp orc and change it to another one with chaos essence until update comes and after that update change back (p.s. only orc can be dominator, so if plan in future to have domi must be orc)