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Adv 2.0 D&D Phase 10 SUB2b: Mage subclasses (Evocation/Abjuration/Necromancy)

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Evocation L7 Empowered Evocation adds INT mod (min +1) to Mage evocation
spell damage. Abjuration L5 Arcane Ward grants a 2×level HP buffer
absorbed before player HP, +prof at L7. Necromancy L5 Grim Harvest heals
2× spell level on spell-kill (3× necrotic) via post-combat hook.

Sculpt Spells / Potent Cantrip / Inured to Undeath skipped — no allies,
save-half is already uniform, and no necrotic enemy damage to resist.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
prosolis
2026-05-08 10:42:35 -07:00
parent 4a5159ee14
commit 596e17dc73
6 changed files with 385 additions and 12 deletions
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41
internal/plugin/dnd_spell_combat.go
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@@ -52,6 +52,8 @@ func applyPendingCast(
dc := spellSaveDC(c)
atk := spellAttackBonus(c)
preDmgBefore := playerMods.SpellPreDamage
switch spell.Effect {
case EffectDamageAttack:
applySpellDamageAttack(spell, atk, playerMods, enemyStats, pc.SlotLevel, c.Level)
@@ -65,12 +67,51 @@ func applyPendingCast(
applySpellBuff(spell, c, playerStats, playerMods, pc.SlotLevel)
}
if playerMods.SpellPreDamage > preDmgBefore {
applyMageSubclassSpellHooks(c, spell, pc.SlotLevel, playerMods)
}
c.PendingCast = ""
if err := SaveDnDCharacter(c); err != nil {
slog.Error("dnd: clear pending_cast failed", "user", userID, "err", err)
}
}
// applyMageSubclassSpellHooks layers the Mage subclass damage/healing
// adjustments on top of a freshly-resolved spell cast. Caller passes mods
// only after the spell actually dealt damage so misses don't trigger
// Empowered Evocation or Grim Harvest stash.
func applyMageSubclassSpellHooks(c *DnDCharacter, spell SpellDefinition, slotLevel int, mods *CombatModifiers) {
if c == nil || c.Class != ClassMage {
return
}
switch c.Subclass {
case SubclassEvocation:
// L7 Empowered Evocation: +INT mod (min 1) to one Mage evocation
// spell's damage per turn. We're one-shot, so "per turn" collapses
// to "this cast".
if c.Level >= 7 && spell.School == "evocation" {
bonus := abilityModifier(c.INT)
if bonus < 1 {
bonus = 1
}
mods.SpellPreDamage += bonus
}
case SubclassNecromancy:
// L5 Grim Harvest stash — heal applied post-combat iff this spell
// landed the killing blow. Cantrip kills count as L1 for the heal
// formula; necrotic damage triples the multiplier (per design doc).
if c.Level >= 5 {
slot := slotLevel
if spell.Level == 0 {
slot = 1
}
mods.GrimHarvestSlot = slot
mods.GrimHarvestNecrotic = spell.DamageType == "necrotic"
}
}
}
// applySpellDamageAttack — Fire Bolt, Inflict Wounds, Chill Touch, etc.
// Roll d20 + spell attack vs enemy AC; nat 20 doubles dice damage.
func applySpellDamageAttack(spell SpellDefinition, atk int, mods *CombatModifiers, enemy *CombatStats, slot, charLevel int) {