Brewmaster Monk

Use a buffed Celestial Brew just before getting hit by Rip Soul to prevent the soul from having a lot of health.

You can use Ring of Peace to interrupt the Shades of Bargast.

Use Statue to help pick up adds.

Paralysis (although reduced duration) and Leg Sweep both work on Soul Infusers to stop them from moving for a short time.

You should also be healing Kael’thas with Vivify during downtime.

Try to have Celestial Brew available for all of the Glyph of Destruction explosions you take, if not available, you can use Dampen Harm or Zen Meditation instead.

Transcendence can be use to teleport to safety to not get hit by Edge of Annihilation in last phase.

Celestial Brew before Overwhelm, or if not available, purify right after.

Have Celestial Brew up for the second application of Evasive Lunge (Stavros) and Duelist’s Riposte (Niklaus).

If you kill Baroness Frieda last, make sure you have Celestial Brew or another cooldown up for Soul Spikes.

It's important that you are the main-tank as a brewmaster. You don't generate Elusive Brawler stacks as off-tank outside of the ones you get through Blackout Strike, meaning you will dodge a lot less, making you harder to heal.

Make sure to have Celestial Brew or another cooldown up when clearing bleed, as you get stunned for a bit.

When tanking Grashaal, you can roll away mid cast of the tank debuff to prevent it from applying to you.

Place a safety transcendence during Phase 2 and 3 to prevent accidentally get knocked off the platform.