Rusting Grasp

School: Transmutation; Level: Technomancer 5 (can only be learned with Supernal guidance)
==== Casting ====
Casting time: 1 standard action
Components: V, S, DF
==== Effect ====
Range: Self
Target: One ferrous target, either equipment or living metal creature
Duration: 1 round / Caster Level
Saving throw: None; Spell resistance: Yes
==== Description ====
Any iron or iron alloy item you touch crumbles into rust. If the item is so large that it cannot fit within a 3-foot radius, a 3-foot-radius volume of the metal is rusted and destroyed. Magic items made of metal are immune to this spell.
You may employ rusting grasp in combat with a successful melee attack. Rusting grasp used in this way instantaneously reduces both AC of the target by 1d6 points for AC granted by metal armors (to the maximum amount of protection the armor offers) through corrosion. Most combat armour still rely heavily on alloys and metals to provide protection to their user.
Weapons in use by an opponent targeted by the spell are more difficult to grasp. You must perform a Sunder combat maneuver to effectively hit the weapon. A metal weapon that is hit is destroyed. Striking at an opponent’s weapon provokes an attack of opportunity, unless you have the Improved Combat Maneuver (Sunder) feat . Also, you must touch the weapon and not the other way around.
Against a ferrous creature, like most robots and drones, rusting grasp instantaneously deals 3d6 points of damage + 1 per caster level per successful attack, which ignores Damage Reduction. 
Category:Spell
Category:Technomancer