Magus (Bladebound)

At 3rd level, the bladebound magus' gains a powerful sentient weapon called a black blade, whose weapon type is chosen by the magus. A magus with this class feature cannot take the familiar magus arcana, and cannot have a familiar of any kind, even from another class.

Instead of the normal arcane pool amount, the bladebound magus's arcane pool has a number of points equal to 1/3 his level (minimum 1) plus his Intelligence bonus. This ability changes the Arcane Pool class feature and replaces the magus arcana gained at 3rd level.

While a magus is wielding his black blade, he gains the Alertness feat.

As a free action, the magus can spend a point from the black blade's arcane pool to grant the black blade a +1 bonus on damage rolls for 1 minute. For every four levels beyond 1st, this ability gives the black blade another +1 on damage rolls.

While a magus is wielding or carrying his black blade, he can communicate telepathically with the blade in a language that the magus and the black blade share.

As long as it has at least 1 point in its arcane pool, a black blade is immune to the broken condition. If broken, the black blade is unconscious and powerless until repaired. If destroyed, the black blade can be reforged 1 week later through a special ritual that costs 200 gp per magus level. The ritual takes 24 hours to complete.

At 5th level, as a free action, a magus can spend a point of his black blade's arcane pool to have it deal one of the following types of damage instead of weapon damage: cold, electricity, or fire. He can spend 2 points from the black blade's arcane pool to deal sonic or force damage instead of weapon damage. This effect lasts until the start of the magus's next turn.

As a standard action, a magus of 9th level or higher can expend an arcane point from his or his black blade's arcane pool, and can call his black blade from as far as 1 mile away, causing it to instantaneously teleport to his hand.

At 13th level, once per day, a magus can attempt to siphon points from his black blade's arcane pool into his own arcane pool. Doing so takes a full-round action and the magus must succeed at a Will saving throw with a DC equal to the black blade's ego. If the magus succeeds, he regains 1 point to his arcane pool for every 2 points he saps from his black blade. If he fails the saving throw, the magus becomes fatigued (but can try again). If he is fatigued, he becomes exhausted instead. He cannot use this ability if he is exhausted.

A magus of 17th level or higher can expend an arcane point from his weapon's arcane pool as a free action; he then gains SR equal to his black blade's ego until the start of his next turn.

At 19th level, each time the magus kills a living creature with the black blade, he can pick one of the following effects: the black blade restores 2 points to its arcane pool; the black blade restores 1 point to its arcane pool and the magus restores 1 point to his arcane pool; the magus gains a number of temporary hit points equal to the black blade's ego (these temporary hit points last until spent or 1 minute, whichever is shorter). The creature killed must have a number of Hit Dice equal to half the magus's character level for this to occur.