2. Maintain Buffs and Debuffs at All Costs
In the final stretch, you must keep your buffs and debuffs up to maximize your survivability and Path of exile currency damage output. Any lapse in your buff/debuff application can significantly hinder your chances of victory.

Buffs:
Herald of Ice/Fire: Reapply as soon as it expires to maintain elemental damage. Herald of Ice is especially useful for freezing or shattering any minions that get too close. Reapply as soon as it expires, especially since adds will be much more dangerous.
Purity of Elements: Make sure it’s active at all times. As Xesht spams elemental attacks, you need to ensure you don’t get overwhelmed by fireball bursts or lightning strikes.
Debuffs:
Temporal Chains: Reapply it immediately after it expires, as the slow effect will drastically reduce the speed of Xesht’s attacks and movement. This gives you more time to react to minion spawns and teleports.
Vulnerability: Keep Vulnerability on Xesht at all times, particularly when it’s below 10% health. This will maximize your damage during this phase, allowing you to POE currency for sale finish it off faster.