Sustaining Steel Feat 10
Source Pathfinder Secrets of Magic
Prerequisites Arcane Cascade, inexorable iron hybrid study
Trigger You Cast a Spell using a spell slot.
Requirements You're in Arcane Cascade stance.
You pull magic into your weapon, using its substance to transform the magic into restorative energy. You regain Hit Points equal to double the spell's level and roll to end any Persistent Negative Damage you have.
If the spell was of the necromancy school, any persistent negative damage you have ends automatically, and you can change the damage type from Arcane Cascade to positive if you wish. (Positive damage typically damages only undead or other creatures with Negative Healing.)
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ArcaneThis magic comes from the arcane tradition, which is built on logic and rationality. Anything with this trait is magical.
HealingA healing effect restores a creature's body, typically by restoring Hit Points, but sometimes by removing diseases or other debilitating effects.
MagusThis indicates abilities from the magus class.
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.
PositiveEffects with this trait heal living creatures with positive energy, deal positive energy damage to undead, or manipulate positive energy.