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

Necromancer
When killing an enemy with a magic weapon, you have a 10% chance to summon a friendly skull companion.
Where Necromancer sits on the 1.0 tree
In the Mage area. The cheapest way in from a starting point buys 4 nodes for 4 points, this one included (one rank each).
- 1Spirit1p
- 2Mage Apprentice1p
- 3Bone to Ash1p
- 4Necromancer1p
Linked toBone to AshAdvanced Necromancy
Builds that use Necromancer
2 preset builds tagged NECROMANCER — defining picks first, then ranked by tier (S → A → B).
- Summoner⭐ DefiningMage
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.
- Necromancer Glass CannonMage
Shroud damage and crits from a staff: Dark Arts at full rank for Shroud spells, Spellslinger for staff damage, Necromancer for skull companions, Bloodletting and Terror on crits, Blood Magic and Chain Hit. Abyss is not on the 1.0 tree, so this is the rebuilt version.
Related Mage skills
Same archetype — likely candidates to slot next to Necromancer 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.
Healer1pValues in the 1.0 files: 15% per rank, 3 ranks.
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
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.