You have an Evergrove wand, which summons Evergrove Ancients to help with the fight.
Caution: Do not destroy of the Evergrove Wand. It is required to turn the quest in. You can only get another one if you abandon the quest. This will allow you to gain another Druid Signal from Wildlord Antelarion which will in turn allow you to summon another Evergrove Druid in Death's Door and reobtain the quest.
Discarding this quest also destroys the Druid Signal object. Without the Druid Signal, you cannot summon the Evergrove Druid, and thus cannot retake the quest. You can return to the Wildlord at Evergrove and ask for a new signal, then return to Death's Door, summon the Evergrove Druid, and get the quest back.