Transcendent Artifact: Monsterskewerer

Kevin Glusing pointed out some days ago that my Ushio & Tora conversion could not be complete without the THIRD main character of the manga. He was absolutely right. So here it is. Thanks Kevin, it was a real fun to make it.

Monsterskewerer (Transcendent Major Artifact)
Aura overwhelming (all schools) CL 30th
Slot none; Price —; Weight 6 lbs.

Statistics
Alignment lawful good/chaotic neutral; Ego 26
Senses 120 ft., blindsense, detect evil
Int 10, Wis 18, Cha 14
Communication telepathy

Monsterskewerer is a +5 called furious ghost touch yokai bane spear. It was created thousands of years ago to slay mythic yokai.
Inside the spear are trapped two souls who gave their lives to create the ultimate weapon, so Monsterskewerer has two distinct alignments and can be used by a character of any alignment. All it requires is that its wielder is willing to slay as many yokai as possible, for whatever reason. Once it has chosen a master, Monsterskewerer doesn’t manifest any of its powers in anyone else’s hands until he is dead or succumbed to its curse (see below).
Monsterskewerer has detect evil always active and resonates when an evil presence is within range. Its blade ignores humanoid flesh as if it were incorporeal, but the haft can still be used to inflict bludgeoning damage to humanoids.

Transcendent Power: A non-mythic wielder chosen by Monsterskewerer gains the following mythic abilities:

• The wielder gains 3 mythic tiers in the champion path.
• The wielder gains the champion’s strike (distant barrage) champion feature.
• The wielder gains a +2 increase to Constitution.
• The wielder gains the Mythic Distance Thrower and Mythic Endurance feats, or the non-mythic versions of these feats if he does not already have them and meets the prerequisites.
• The wielder gains the endless hatred, flash of rage, and myth slayer path abilities.

Special Purpose: Monsterskewerer has the special purpose of slaying yokai. Regardless of whether he has mythic tiers, if Monsterskewerer’s wielder shares in its special purpose, he gains the following benefits.

• The wielder gains DR 5/--.
• The wielder can use resurgent transformation once per day.

Curse: Whenever Monsterskewerer becomes dominant on its wielder, he must attempt a further Will save. A failure means that the wielder loses 1 point of Intelligence for the purpose of subsequent saves of this type only.
When his equivalent Intelligence drops to 0, the wielder becomes permanently dominated and begins to transform into a yokai himself. A powerful healing ritual can invert the transformation within a week; otherwise, the wielder permanently becomes a monster under the GM’s control (with a type, subtype and CR based on his former alignment and level) and loses most of his former memories. Monsterskewerer will then abandon him and seek a new master.

Destruction
If Monsterskewerer has not a master, it can be destroyed by wrapping it in a special anti-magic cloth made from yokai souls, then melting it in a deep stone tank full of incandescent rare metals until it’s completely cooled.
If its master’s alive, Monsterskewerer will only fade to nothingness spontaneously once it has been used to slay a mythic yokai it hates most, thus freeing the souls entrapped inside.