SYSTEM NOTE: WAR MAGE
You treat spellcasting as a war of attrition, and you are winning. Every spell makes you tougher; every wounded enemy makes you crueler. The System approves of your efficiency and has stopped counting.
Parent class: Wizard
Feature levels: 3, 6, 10, 14
Features
Level 3 — Symbiotic Ward
After casting a Wizard spell using a spell slot, gain Temporary HP equal to twice the slot’s level. Once per turn.
Level 3 — Battlefield Study
Gain Arcana proficiency; if already proficient, gain Investigation proficiency instead.
Level 6 — Cruel Efficiency
Once on your turn when your Wizard spell damages a creature currently Bloodied, deal an additional 1d8 Necrotic damage to that creature.
Level 10 — Refuse Disruption
When you fail a Constitution saving throw to maintain Concentration, use your Reaction to add 1d6, potentially succeeding. Intelligence modifier uses, minimum one.
Level 14 — You’re Not Done Yet
When an ally you can see within 30 feet drops to 0 HP without being killed outright, use your Reaction to restore 1 HP to it and grant Temporary HP equal to your Wizard level. Once per Long Rest.
Notes
The playable version gains no corpse-resleeving procedure, hundreds of extra spells, or postmortem explosion.