is there a dispel potion

Yo I'm trying to do deltascape 4.0 right now so i can get on with current day's content, and I can't kill the boss as SMN but as SCH it took ten forevers to get him to half only to fall off the ledge to a mechanic that I (SHOULD EXPECTEDLY) not know anything about having never even played ff14 during stormblood and only started at endwalker release... however I want to make this quick and nobody knows. Is there a dps class I can pick or a potion I can use to get the doom debuff off of me so I can just kill this guy and get it over with? I don't want to have to spend another thirty minutes spamming broil to kill him

For dps, your only option is Bard, it's the only job along with the healers, that is able to solo that boss. Blue Mage can do it too, but they can't progress the quest.

Bard it is! thank you