How to tankadin- threat spec

First thing you need to know is how to spec.

Here is mine...

I left 1 glyph slot open.
Spiritual Attunement or Judgement both work here.

Note my taking Divine Sacrifice and Divine Guardian over Divinity.
Divinity isn't helping you receive heals enough to be worth 5 pts.
Deconstructor and Malygos taught me the power of the DS/DG combo.

(Hint: pop bubble, activate divine sacrifice. The damage you take is 0, so the health restriction is non-existent. It's a free 40% less raid damage for the 10 seconds.)

So why did I go all the way to Crusade?
Threat.

3% damage, (6% on the ones it specifies) along with more crit means my threat is pretty significant. When dealing with some trigger happy DPS with a bunch of special buffs from encounters (looking at you Thaddius) it means they have a much harder time making me look at omen to make sure.

Remember, tanking is 2 jobs in 1.
Job1: Make the bad guy so angry at you they ignore the people killing them for real.
Job2: Survive Job1.

This spec does both quite well. I'll explain the other stuff later.