This is the Set SuperNova means which is also known as Henir - Lord of Time and Space or just Henir Set:
Here is a list of ALL Ice burners:
https://elwiki.net/w/Ice_Burners
But I would recommend you to KEEP your black Mesa accessories. I would only buy the Henir Set for Fashion only. It used to have the best accessories but got replaced by the black mesa accessories.
Dominator is more physical than magical so keep that in mind. Try to get him some physical atk group buff pants from the heroic equipment and definitely equip him with red stones later in Elyanod. I won’t go deeper into Elyanod now but I may at Saturday or Sunday (if someone isn’t faster).
Start doing the sinister intent dungeon now. It doesn’t matter if you lose all of your 3 daily matches, because the opponent gets weaker after each loss on your side. It also takes some time and you can fill your eye slot with it. You can also upgrade these accessories with materials from the dark portal. You should go there for the buff anyway but now you are also able to upgrade your sinister intent accessories which is really neat!
I will later show you my accessories. I may not have everything perfect and definitely lack the black Mesa accessories but I kinda have the base and are currently trying to upgrade them. I‘m the equipment > accessories type of player.
Otherwise Spyro190 had said everything you need to know to get started. Get some temporary hero equipment with 2 courage - 2 wisdom parts, farm void (if you are able to pass) and then continue farming these daily:
- heroic
- sinister intent
- Void (at least twice a day)
- maybe Elyanod if you are able to enter it with lv 99. Still continue for farm heroic because you might get better parts and if you don’t need them on your main anymore you can share it with your other characters!
=> elyanod has dailies with unique stones so try to get them!
- maybe drabaki if you are able to enter it
If you can’t enter the heroic dungeons then try to mingle yourself some secret dungeon parts. Secret dungeon is the first acceptable equipment and can be used to farm heroic. If you are lucky you don’t need a decent secret dungeon equipment and may get carried through the heroic dungeons from veterans who try to reach perfection with their heroic set for twinks.