Disintegrate isn’t what delete health bars.
There are several things from Devoker that erase health bars.
- RNG Eternity Surge from Scintilliation will delete an health bar.
- Dragonrage on stacked group of players with fully stacked Charged Blast will delete said group of players health bars.
- Deep Breath will delete people because of the recently buff to Lay Waste and Spellweaver’s Dominance will delete the health bars of anyone struck.
- Tip the Scales Fire Breath with both Font of Magic and Heat Wave talents is just too much unavoidable instant damage with no prep required.
This is why you have Devoker + UH DK just destroying people, DK pull entire enemy team in once Devoker got his 20 stacks of Charged Blast (which is easy to get).
Devoker then proceed to do Tip the Scales > Fire Breath > Deep Breath (which is gonna stun you by the way) > Dragonrage.
Even if you do survive this, you get his with a chrono loop to add insult to injury.
Disingtegrate by itself? It does fluff damage any healer can just heal through with the most basic of heals.