Domination doesn't affect Dom's damage at all, hasn't since issue 15. When it was removed and put in the AT mod and in the Assault powers themselves. They do the same damage in or out of Domination and are one of the higher dmg ATs. This is what Domination gives them a brief 25% hit buff for 15 secs of the 90 sec duration and makes it so they can spam less control so they can use assault more often, the mez protection, and a refilled blue bar upon click .They play fine at low levels without permadom currently leveling Dom #41-43 for reference. Play bit more tactical and not like some smash face on keyboard AT and you'll do fine