It depends on what kind of support do you want: offensive or defensive?
If you want offensive support, there are multiple classes that can be arisen: summoner, psio, mage, priest.
If you want defensive support, there are only two in game but only one of them can be arisen: engineer.
This post has been edited 1 times, last edit by "ironist" (Feb 24th 2019, 4:18pm)