Okay so I haven't played Dc universe online in like a year or so, but I did already have 2 characters lv 30. One of my favorites is my Lv 30 Earth Tank. Though I need some advise. I do not have any sets right now just normal armor i got from previous quests and enemies. These are my stats.

Health 2236
Power 1164
Defense 1097
Might 881
Res 743
Vit 4
Pre 115
Tough 171

Dom 192
Combat Rating 30

I know this isn't good, but any tips on what armor set I should try to get and what Duos and stuff I should try to do? Also I like going solo most of the time so easy ways of getting MoT's would be nice.