Ambulamp

Description
"'Can Heal itself and others'"A class that provides healing support, but deals no damage. Great for gaining trust and teaming up with other players.

As Ambulamp
Try to upgrade your max health and your "Heal Orb", this will increase your survivability and healing support. You can also team up with other players to gain their trust, but  some players will betray you and kill you.

Against Ambulamp
You don't have to kill them, but if you really want to, just bump them until they die.