Firstly, upgrade the treasure.
Su Yu took out the Nine Heavens Purple Lightning Hammer, then took out a ninth-grade essence and 73 strands of the Power of Law.
First, refine the ninth-grade essence into the Nine Heavens Purple Lightning Hammer, upgrading it to a ninth-grade treasure.
Then, infuse strands of the Power of Law into the just-upgraded ninth-grade treasure, continuously enhancing its quality.
The Nine Heavens Purple Lightning Hammer, after merging with the ninth-grade essence, immediately becomes a ninth-grade gem, and after continuously infusing the Power of Law, its quality and power keep increasing.
By consuming 50 points of the Power of Law in one go, the Nine Heavens Purple Lightning Hammer is promoted to a ninth-grade treasure.
Nine Heavens Purple Lightning Hammer (Ninth-grade): Treasure, a rare item that controls the Nine Heavens Divine Thunder Power.
Thunder Strike: Activate the hammer to launch a strand of Nine Heavens Divine Thunder, dealing 200,000 + 300% magic damage bonus of thunder damage to a single target, casting range 50 kilometers, mana consumption of 3000 points, with attributes: paralysis, celestial thunder demon cleansing, thunder explosion.
Nine Heavens Thunder Kill: Using the Purple Lightning Hammer to communicate with the heavens, channel for 10 seconds before launching a 1,000,000 + 700% magic damage bonus of thunder strike at the target, guaranteed paralysis for 3-10 seconds, casting range 100 kilometers, mana consumption of 30,000 kilometers, cooldown 15 minutes, with attributes: paralysis, celestial thunder demon cleansing, thunder explosion.
Endless Thunder Strike: Using the Purple Lightning Hammer to communicate with the heavens, channel for 60 seconds to summon a strand of Nine Heavens Purple Lightning to strike all enemies within a 75-kilometer radius of oneself, mana consumption of 150,000, cooldown 2 hours.
Paralysis: Attribute, the Power of Celestial Thunder can paralyze the target, reducing reaction time.
Celestial Thunder Demon Cleansing: Attribute, the Nine Heavens Divine Thunder Power deals 100% additional damage to demons and demon spirits, ignoring 100% resistance of demons and demon spirits.
Thunder Explosion: Thunder Strike evolves into area attack, the main target explodes into countless fine lightning chains attacking all enemies within a 500-meter radius centered on the target, dealing 50% damage, this effect can be toggled on or off freely.
"Not bad, the power has increased a lot."
Under normal circumstances, the magic damage is 560,000, surpassing the other four Five Elements Thunder Skill except Gui Water Divine Thunder; even seventh-grade defense treasures can be destroyed in one strike.
After upgrading the treasure, Su Yu turned his gaze to the Dao Foundation.
He is now at the second-layer Dao Foundation, upgrading to the third-layer requires 300 billion cultivation points and 300,000 Dao deeds.
With innate bone reduction, only 210 billion cultivation points and 255,000 Dao deeds are needed to upgrade.
Dao Foundation upgrades one layer: Qi and Blood +500,000, Mana +20,000, physique +20,000, strength +30,000, magic power +20,000, physical flight speed +5000 kilometers/hour, Qi and Blood recovery +1000 points/second, mana recovery +30 points/second.
Flying sword damage +6000, attack speed +4000, sword control speed +4000 kilometers/hour.
In addition, successfully derived three new Dao techniques, one Qi Refining Heart Skill, one Sword Formulas, one Body Refining Skill.
The Body Refining Heart Skill derived the Second Primordial Spirit technique, which can use Secret Skill to tear apart the soul, nurturing a second Primordial Spirit.
The second Primordial Spirit has two refining methods, one is to shape the flesh with one’s own blood and flesh, equivalent to a second self, starting at level 1 whiteboard, can cultivate any Dao technique, can consume cultivation points and Dao deeds to enhance cultivation, eventually reaching the same level as the main body, and still needs to undergo Celestial Tribulation at level 100.
This refining method has the disadvantage of initially being weak and requires massive resources, starting from zero after all.
The advantage is limitless growth, essentially a second self, if the real body unfortunately perishes, the second Primordial Spirit can still live another life.
The second method attaches the separated soul to various spiritual objects treasures, refining an avatar based on the treasure.
Its initial level depends on the quality of the treasure, the higher the quality, the higher the level. If refined based on a tenth-grade treasure, the second Primordial Spirit’s initial level is at least above 180.
If refined based on an innate immortal treasure, the second Primordial Spirit’s initial level is at least above 200, directly mastering the laws corresponding to the immortal treasure, extremely powerful.
However, although the second method is initially strong, its growth limit is limited by the foundation.
The limit of the tenth-grade treasure cannot achieve Celestial Immortal.
There’s no problem with immortal treasures; although they also have limits, once one becomes immortal, what more could they ask for?
The third second Primordial Spirit refining method uses the body shell of a strong person for refining, for example, obtaining an Earth Immortal’s body to take over.
If one can obtain an immortal’s body for sacrifice, they immediately gain the combat power of an immortal.
Besides the three methods above, there’s a fourth second Primordial Spirit refining method, using innate Spirit Root or innate immortal treasures as the second Primordial Spirit. This method not only has limitless growth like the second Primordial Spirit refined from one’s own blood and flesh but also starts at a very high initial level, incorporating the advantages of the first two methods.
Su Yu happens to have an innate immortal treasure in hand, which can refine a second Primordial Spirit initially over level 200.
However, Su Yu won’t refine it, at least not until his real body perishes will he consider the second Primordial Spirit.
The reason is simple: if the Sea-Suppressing Pearl is sacrificed to refine the second Primordial Spirit, Vast Sea will die.
After refining the second Primordial Spirit, the Sea-Suppressing Pearl will become the body shell of the second Primordial Spirit, automatically making the second Primordial Spirit the Artifact Spirit of the Sea-Suppressing Pearl. How can Vast Sea, currently the Heavenly Dao of the Sea-Suppressing Pearl’s inner world, coexist?
A treasure cannot have two Artifact Spirits, so one has to go.
Unless a new unclaimed innate immortal treasure is found.
Furthermore, if there is a second Primordial Spirit, massive resources are needed for cultivation, how much will be invested for a second Primordial Spirit over level 200?
Hence, this Dao technique is temporarily a chicken rib, unlikely to be useful at present.
Ignoring this Dao technique, Su Yu turned his gaze to the swordsmanship derived from the Time Sword Classic—Time Sword: Time Stagnation.
Time Stagnation (Dao Foundation): Sword determines target’s time, freezing for 3-12 seconds, mana consumption 30,000, cooldown 24 hours.
To put it simply, it’s time freeze, another divine skill.
Then, he looked at the technique derived from the Nine Extremes Myriad Law Immortal Skill—Potential Overdraw (Dao Foundation).
Potential Overdraw (Dao Foundation): Overdraw potential, restore all Qi and Blood and Mana within three seconds, rapidly heal wounds and regenerate flesh, maintain half recovery speed for the next fifteen seconds, cooldown time of 10 days.
A purely life-saving ability, nothing more to say.
It is worth mentioning that as the Dao Foundation grade improves, the effects and power of the previously derived Path Skills and Body Refining Skills will also enhance, reaching the Loose Immortal level.
After reviewing the three derived Path Skills, and resting for a while, Su Yu once again consumed...350 billion cultivation points and 340,000 Dao Acts, raising the Dao Foundation to the fourth tier, equivalent to level 140.