Tankasins DO NOT suck. They are epic. We get to stealth, use lightning and have a double-bladed lightsaber, but besides the aesthetics if you use overcharge saber and the other defensive barrier thing at the right time you will last very long. Even in pvp I almost always do really good as my tankasin. Also there is a skill tree thing for darkness that when you activate thrash(?)once again can't remember the name you get to use maul for 25 force from the front or back which gives us a ton of burst. Also wither is a great aoe attack. and if your getting beat in pvp just stealth, heal, maul, shock, wither, shock, lightning, etc and they are dead.