Fire Mage

Pretty straight forward fight. Make sure you use Alter Time when targeted by Echolocation to return to your original position.

Also, make sure when you use shifting power the boss gets damaged.

Focus on the boss or the dog depending on your group's needs. Use Mirror Image and Blazing Barrier when target by Sinseeker to improve your survivability.

Start by using a flamestrike combustion on the starting mobs. After that you will want to use ST combustion on the shield you are assigned to.

After phasing the boss you will want to spam flamestrike as there are many adds present.

When the boss is up again, hold your combustion for the shield.

Make use of your mobility with Soulshape, Shimmer and Alter Time to carry the seeds away from your team.

You can use Ice Block to prevent a ghost from mind controlling you.

Make use of your defensive abilities such as Mirror Image, Blazing Barrier, Alter Time and Ice block to mitigate the encounter's damage.

Nothing special to really add here, focus on the boss and use Combustion when the adds spawn.

Don't bother with Ignite spreading and cleaving here as the health of the bosses reset. Just focus on your assigned target.

A single target fight. Make sure your second combusts aligns with the boss's damage amplification (Destructive Impact).

The optimal trinkets for this fight are Empyrial Ordnance and Badge. Make sure you use Ordnance 20 seconds before you want to use badge to get the double on use uptime on the boss's exposed phases.

On Phase 1 and Phase 2, you will want to Flamestrike with Combustion to deal with the skirmishers. Same applies on the intermissions, where you will want to focus down the commandos when their shield is up.

When you use combustion on Phase 1, you want to time your shifting power to damage the adds.

On Phase 2 you should focus the add you're assigned (on Mythic) or the boss otherwise. Use Alter Time to mitigate some of the Impale damage.

On Phase 3 you can use Alter Time to offset the knock-back.