What Build is there with which you can Solo Hard content and possibly run around in PvP as a tortoise?

Would this work going Heavy Armor and Templar?

Heavy Armor Nightblade with Siphoning talents seems like it would be a great solo class extremely hard to kill, but I haven't had the chance to test.

Purely based on theory? Come on

Siphoning and healing abilties from the resto staff?

Been playing a heavy armored orc nightblade with siphoning.

Seems to work well, but i'm only level 7.

I think all classes can solo PvE with the right build and level advantage, although i can see them all needing to build tanky/sustain.

Try it, I played a sorcerer tank this weekend and I was crazy tanky. A templar tank soul probably have similar results