Ranger Spirits
Not just Ranger spirits but buff all pet’s hp(turrets, spirit weapons, minions, etc) so they are almost unkillable at least by dungeon mobs.
Before the Guardian’s spirit weapon nerf, Spirit weapons were fun to use anywhere including dungeons. Now that Guardian’s spirit weapon has hp, it has become really crappy.
5x Warrior, 5x Ranger, 4x Elementalist, 4x Engineer,
4x Necromancer, 3x Mesmer, 4x Guardian, 4x Thief, 4 Revenant
4x Necromancer, 3x Mesmer, 4x Guardian, 4x Thief, 4 Revenant