Fantastic Mythos
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A Spirit of [Energy] Dwells Within
Prerequisite: 'A Reliquary For The Fire Of The Gods' Mythos

To acquire this Mythos, you must have a mote of energy obtained via the 'A Reliquary For The Fire Of The Gods' Mythos. When you take this Mythos, you must choose a type of energy for which you possess the corresponding mote.

As a standard action, once per day, you may summon a Large Elemental corresponding to your chosen energy, which appears in an adjacent space. Fire summons a Fire Elemental, Cold summons an Ice Elemental (MotP), Electricity summons a Lightning Elemental (this functions identically to a Smoke Elemental, MotP, save that damage it deals is Electricity damage), Acid summons an Ooze Elemental (MotP), and Sonic summons a Sound Elemental (this functions identically to an Air Elemental, save that damage it deals is Sonic damage).

The elemental exists for (class level + Wisdom modifier) rounds and follows your commands to the best of its abilities.

When you summon the elemental, you may choose to temporarily transfer your mind into it. While possessing the elemental, replace its mental ability scores with your own, and add your own feats, skills, and spoken languages to its list. Use your base attack bonus in place of the elemental's. Otherwise, you act with the elemental's statistics, taking your first turn as the elemental on its new initiative. If the elemental dies, or when its duration expires, your mind returns to your normal body unharmed.

While your mind is not in your weapon-body, your Mythos still function, and those that can be activated by your wielder can still be activated, although you cannot take actions to activate abilities yourself.

At 9th level, summon a Huge Elemental instead. At 11th level, summon a Greater Elemental. At 13th level, summon an Elder Elemental. At 19th level, summon an Elemental Monolith (Fire and Air Monoliths can be found in Complete Arcane, while Ice, Ooze, and Smoke are in Dragon Magazine #347).

Basic
Carrying The Reliquary: When you possess your elemental, you take your 'A Reliquary For The Fire Of The Gods' Mythos with you, allowing you to cast cantrips from your elemental body. If you possess the 'Illustrious [Energy] Blade' Mythos, you may take that with you as well, removing the x-Burst weapon property from your weapon-body, and imparting it to your elemental's natural weapons, as well as allowing you to spend Magic Power to project that Mythos' line of elemental energy. However, during this time, your wielder cannot project that line of energy from your weapon-body.

Stoking Spent Coals: You may spend 2 Magic Power to summon an elemental with this Mythos if you have already spent your daily use of the ability.

Resilient Spiritual Construction: While you are possessing your elemental, use the better of its saving throw modifiers, or your own.

Attenuating Sword-Emperor Exaction
Prerequisite: -

You gain the Improved Disarm and Improved Sunder feats as bonus feats.

With the authority of the Ur-Weapon behind you, you force all lesser weapons to turn against their owners and kneel in supplication. All non-sentient weapons within [30ft + (10ft x Charisma modifier)] that are wielded by your enemies do not deal their base damage on a successful attack.

(For example, an Orc with 18 Strength, wielding a +1 Flaming Greatsword, would normally deal 2d6+7+1d6fire damage. That's 2d6 base damage, 4 from strength, an additional 2 from strength for being a two-handed weapon, 1 from an enhancement bonus, and 1d6 from fire. Under the effects of this Mythos, their Greatsword does not deal its base 2d6 damage, leaving them with 7+1d6fire damage.)

Furthermore, enemies in this area take a -4 penalty to the opposed roll to resist being disarmed.

This Mythos (other than the bonus feats) only functions against manufactured weapons, and not improvised or natural weapons.

Bloodshed With Greater Purpose
Prerequisite: -

Choose one alignment component.

If you choose Good, then you become a conduit for celestial energy, gaining the Holy property, and radiating a continual Magic Circle Against Evil. If you choose Evil, then you become a conduit for fiendish energy, gaining the Unholy property, and radiating a continual Magic Circle Against Good. If you choose Chaos, then you become a conduit for dissonant energy, gaining the Anarchic property, and radiating a Magic Circle Against Law. If you choose Law, then you become a conduit for harmonious energy, gaining the Axiomatic property, and radiating a Magic Circle Against Chaos.

These property are Extraordinary, but the Circles they emanate are Supernatural in nature.

Furthermore, choose an ongoing situation in the world that is great enougth to at least be important on a national or continental scale, the resolution of which would further the cause of your chosen alignment component. While your wielder is directly taking action to resolve this situation in accordance with your chosen alignment, damage rolls they make with you are rolled twice, and they take the better result. When this situation is resolved, made impossible, or deteroriates in importance until it is no longer of the proper scale, you may choose a new purpose.

At 13th level, you must choose situations that are at least of planetary impact and importance.

The player of a Syntrofos need not choose an alignment component for this Mythos that the Syntrofos actually has. It is theoretically possible for a bloodthirsty jerkface sword to be destined with a noble purpose, or a hammer forged to bring order to the land to, through its own experiences, eventually develop a detached individualistic personality.

Conducting Lightning And God-Flame
Prerequisite: One of the 'Magic Item Prana' OR 'A Reliquary For The Fire Of The Gods' Mythos

You attain great mastery over the inner workings of your body, and the channels through which magic might be flow. Whenever an augment crystal is socketed into you, it operates as if it were one step more powerful than it actually is (for example, a Least Crystal of Fire Assault would function as a Lesser Crystal of Fire Assault while inside of you). If you are socketed with a Greater Crystal, the residual magic allows you to bypass damage reduction as if you were magical, if you are not already, and if you already provide an enhancement bonus to attack and damage rolls made with you, this bonus is 1 greater than usual.

Furthermore, choose a clerical Domain (or, if you're feeling up to it, you may create a thematically linked list of nine spells of your own devising, one of each level, though they must be as tightly joined in theme as a regular Domain would be).

Three times per day, your wielder may sacrifice a prepared spell or daily spell use, to cast the same level spell on your Domain list. This new spell functions exactly as if they had cast it, including caster level, save DC, material and XP components required, and so on. They may even spontaneously apply Metamagic feats to these new spells, but they must still sacrifice a prepared spell or daily spell use of the new, appropriate level.

(For example, if you chose the Protection Domain, a Sorcerer with the Extend Spell feat might sacrifice a 5th level daily spell slot to cast an Extended Spell Immunity through your domain list, whereas a Wizard with the Still and Silent Spell feats could sacrifice one of his prepared Summon Monster VIIIs to cast a Still Silent Antimagic Field.)

Advanced
Protective Synergy Practices: You have modified your eldritch pathways to accept Armor and Shield Augment Crystals into your augment crystal sockets. They function as normal, as if you were a suit of armor or a shield.

Exciting New Customization Options: [Reforged] You have a second augment crystal socket.

Reinforced Arcano-Capillaries: If you have the 'A Reliquary For The Fire Of The Gods' Mythos, and you have no more daily uses of this Mythos' spell-conversion ability, you may spend one Magic Power to allow your wielder to convert a spell anyway.

Illustrious [Energy] Blade
Prerequisite: 'A Reliquary For The Fire Of The Gods' Mythos

To acquire this Mythos, you must have a mote of energy obtained via the 'A Reliquary For The Fire Of The Gods' Mythos. When you take this Mythos, you must choose a type of energy for which you possess the corresponding mote. This Mythos may be purchased a maximum of two times.

You are a Flaming Burst (Illustrious Fire Blade), Icy Burst (Illustrious Cold Blade), Shocking Burst (Illustrious Electricity Blade), Acidic Burst (Illustrious Acid Blade), or Screaming Burst (Illustrious Sonic Blade) weapon, as the magic item property, depending on which variation of this Mythos you have chosen.

As a full-round action, you may spend 1 Magic Power to make a normal melee attack with yourself, and project the attack as a line with dimensions up to 10ftx10ftx[30 + (wisdom modifier x 5)]ft, originating at yourself. All non-energy damage normally dealt by the attack is converted into the same energy type you have chosen for this Mythos (if you have taken this Mythos twice, choose between either).

Your wielder may spend a full-round action to perform the same line-attack, costing the normal 1 Magic Power.

Just as a spell that ignites a combustible material is magical, but the fire that spreads and grows outward from that ignition is mundane fire, so to do the effects of this Mythos originate from magic but are not, in themselves, magical.

Incomparable Weapon-Works
Prerequisite: -

When you attack with yourself using your 'A Will Of My Own' class feature, you may make a full-attack instead of a single attack.

Your wielder may spend a standard action to make a full-attack with you.

Worthiness-Discerning Ego
Prerequisite: The 'Weapon-and-Warrior Empathy' Mythos