No cleric stance, next should be no tank stance?

[Reinha]

Tank Stance is what allows MT/OT to even work in the first place. It's a switch you can flip between Tank and "DPS". It's kind of required to make it work.

But the MT only uses tank stance during the first few skills, if at all on pull. The rest of the time enmity is handled with Provoke and Shirk and both tanks are in dps stance.