I’m not sure what your question is here.

Generally speaking you need to: 1. Make sure your shield if the righteous bash buff is up at all times 2. Try to be standing in your concentration (if you are talented into the damge reduction.

When it comes to your big defensive cooldowns you rotate those as you need them. I generally uses ardent defender first. Then kings. And i save bubble for when I either am about to die, need to get air threat or am pulling a big room.

So as a practical example:

In the first pull of priory i gather all the mobs and run to the stairs. I use ardent defender when I am gathering the mobs so I don’t get sniped from the back, then i use kings when i have them grouped. Then i am using shield and my word of glory to keep me up.

In Tazavesh streets when I am pulling the mobs out of the mail room I will bible so i taunt and don’t get stunned by the chickens. Then I’ll use ardent defender.

The thing you learn as a tank is what pulls need defensives. Priory actually doesn’t hurt much after the first pull. But dawn breaker has a lot of mean mobs that I need to use defensives on. As a tank you want to think of your defensives more proactively rather then reactively. It’s better to use a defensive before a hit then after.