Ranger
-Water Spirit: Spirit. Summon a water spirit that grants nearby allies a chance to heal when attacking. Aqua Surge: Heal yourself and cause your water spirit to heal nearby allies.
Necromancer
-Signet of Vampirism: Signet Passive: Siphon life from enemies that strike you. Signet Active: Mark an enemy. Allied players will steal life from that enemy.
Mesmer
-Signet of the Ether: Signet Passive: Heal yourself based on the number of active illusions you control. Signet Active: Heal yourself and refresh all phantasm skill recharges.
Guardian
-Litany of Wrath: Meditation. Heal yourself. For a brief time, you heal each time you strike an enemy, based on a percentage of damage dealt.
Engineer
-A.E.D.: Gadget. Activate your A.E.D., enabling the system to heal you after a brief period of time. If your health drops below 1%, you are healed for a massive amount and your A.E.D. is deactivated. Static Shock: Use your A.E.D. to stun an enemy.
Elementalist
-Arcane Brilliance: Arcane. Blast the target area, hitting foes with critical damage and healing yourself. Healing effectiveness is increased per target hit.
Thief
-Skelk Venom: Venom. Your next few attacks heal you.
Warrior
-Defiant Stance: Stance. Absorb all incoming strikes for a period of time. All incoming attacks heal you.

Source:https://forum-en.guildwars2.com/foru...ew-Heal-Skills