Partly updated for Enshrouded 1.0— 1.0: the unlock cost; the rest is pre-1.0 wiki data

Healer
The pre-1.0 wiki text for this skill gives numbers the 1.0 files changed, so it is not shown; the 1.0 values are above.
Where Healer sits on the 1.0 tree
In the Mage area. The cheapest way in from a starting point buys 2 nodes for 2 points, this one included (one rank each).
Builds that use Healer
6 preset builds tagged HEALER — defining picks first, then ranked by tier (S → A → B).
- Healer Support⭐ DefiningMage
Group healing: Healer and Water Aura at full rank, Waters of Life, Healing Revive and Saviour for downed allies, Divine Surge and Righteous Fire. Healer II and Sun Aura are not on the 1.0 tree.
- Fire Mage StarterMage
The first Mage build to take into 1.0: Arsonist and Mage Apprentice for damage, Radiant Aura and Counterstrike for fire around you, Fire Resistance and Healer to stay up.
- Solo Adventurer HybridHybrid
A bit of everything for playing alone: Marksman and Skill Shot for the bow, Battle Heal and Warrior's Path for melee, Healer, Counterstrike and Fire Resistance, Runner and Saviour.
- Radiant PaladinHybrid
One-handed sword and shield with fire around you: Radiant Aura and Counterstrike at full rank, Arsonist for a fire sword, Battle Heal to heal on melee crits (Veteran makes them more likely), Heavy Plates for armor, and Water Aura with Waters of Life for allies.
- SummonerMage
The new 1.0 summoner: Advanced Necromancy (+1 skeleton per rank) and Totem Mastery (+1 totem per rank) at full rank, Necromancer for a skull companion on magic kills, Quick Charge and Mana Currents to keep casting. Totem and skeleton spells come from the Alchemist and the Collector.
- Battlemage HybridHybrid
Half Warrior, half Mage: Warrior's Path, Slasher and Heavy Plates for the one-handed sword, Thunder at full rank with Mage Apprentice and Wizard for the shock wand, Battle Heal to sustain.
Related Mage skills
Same archetype — likely candidates to slot next to Healer in a build.
Arcane Deflection1pOn a successful parry, gain 20 mana.
Counterstrike1pThis magical attack can trigger other skills.
Eternal Spark1pValues in the 1.0 files: 15% per rank, 3 ranks.
Fire Resistance1pIncreases your Fire Resistance by 5% which reduces the amount of Fire damage received.
Healing Revive1pValues in the 1.0 files: 8% per rank, 3 ranks.
Ice Resistance1pIncreases your Ice Resistance by 5% which reduces the amount of Ice damage received.
Intelligence1pIncreases your Intelligence attribute by 1 Increases Magic damage by 5% per Attribute Point
Life Essences1pYour maximum health is increased fivehold by your intelligence attribute.
Sources: game files 1.0 + Keen Games 1.0 patch notes (changelog, combat changes) for the unlock cost; enshrouded.wiki.gg (pre-1.0) for the description and effects.