Chapter 104: Cold Heart Iron

With the foundation of the previous Thousand Refined One-Word Battle Armor, it only took a few days for Mu Yang to deduce the upgraded version of the Spirit Refined One-Word Battle Armor's crafting method last night.

As for why he didn't directly work on the Two-Word Battle Armor?

It wasn't because he and Shui Bing'er lacked the six-ring soul power required to wear it.

Although a Spirit Refined Two-Word Battle Armor required the wearer to possess six rings or above, that restriction only applied to ordinary soul masters.

To be precise, the requirement for each level of Battle Armor wasn't based on soul power rank but rather on sufficiently strong soul power and spiritual power.

While their soul power levels hadn't reached the six-ring Soul Emperor stage, in terms of both soul power and spiritual power, they were not inferior to ordinary Soul Emperors. If they had a Two-Word Battle Armor, they could still use it normally.

The real reason was that Mu Yang had not yet deduced the crafting method for the Two-Word Battle Armor, nor had he even begun working on it.

After all, the soul tool formation arrays inscribed in a Two-Word Battle Armor couldn't simply be copied from a One-Word Battle Armor.

Do it himself?

Sorry, that was beyond Mu Yang's capabilities.

Even though he could forge a One-Word Battle Armor, he wasn't actually proficient in soul tools. He only knew how to replicate existing designs but not how to innovate. Asking him to copy was fine, but asking him to create something new? That was just making things difficult for Fat Tiger.

"What kind of soul tool is it? And why does it have to do with body measurements?"

Seeing Mu Yang holding a measuring tape, Shui Bing'er was puzzled.

"It's a surprise. Just wait and see—I guarantee you'll be shocked!"

"Do I need to take off my clothes?"

Shui Bing'er asked shyly.

"Uh… hmm, absolutely!"

Mu Yang was stunned for a moment before nodding with certainty.

Originally, it wasn't necessary, but since she asked, then of course, it was a must!

Fifteen minutes later, Mu Yang led a blushing Shui Bing'er into the forging room downstairs.

Glancing at the piles of various rare metal ingots in the corner, Mu Yang picked up a one-foot-square, slightly ice-blue metal block and placed it on the forging table.

"What kind of metal is this? It feels cold."

Sensing the chill emanating from the ice-blue metal ingot, Shui Bing'er asked curiously.

"It's called Cold Heart Iron, a rare ice-attribute metal. Soul tools made from it are best suited for ice-attribute soul masters."

Mu Yang explained, then with a flash of silver light, a pair of Spirit Refined Heavy Silver Twin Hammers, covered in icy blue flame patterns, materialized in his hands.

Shui Bing'er was already used to Mu Yang's sudden display of the Spirit Refined Heavy Silver Twin Hammers.

Back when Mu Yang first completed Spirit Refinement and upgraded his Thousand Refined Heavy Silver Twin Hammers, he had proudly shown them off to her.

Well, she didn't really understand, but she did give Mu the 'You're amazing' look.

Injecting his Ice Flame soul power into the Spirit Refined Heavy Silver Twin Hammers, Mu Yang activated Heavenly Hammer Technique and delivered a heavy strike onto the Cold Heart Iron ingot.

"Boom—!"

The forging room echoed with rhythmic booms.

Other blacksmiths' hammering might sound like ding ding ding, but Mu Yang's forging was definitely boom boom boom.

Raw power worked miracles—just smash it hard!

With his excellent strength control, most of Mu Yang's hammering force was concentrated on the Cold Heart Iron ingot. Otherwise, an ordinary iron forging table wouldn't be able to withstand his strikes.

Soon, the Cold Heart Iron ingot on the table shrank significantly as it underwent Hundred Refinements purification.

After completing the Hundred Refinements, Mu Yang paused, releasing his Ice Flame soul power to melt the refined Cold Heart Iron, reshaping it into two identical pieces.

Cold Heart Iron was denser than ordinary iron. Even after removing impurities through the Hundred Refinements, the original one-foot-square ingot still weighed around 600 jin. That was far more than needed for crafting a Battle Armor.

Since his Ice Flame soul power had an ice attribute, Mu Yang decided to use Spirit Refined Cold Heart Iron to forge an upgraded One-Word Battle Armor for himself as well.

300 jin of material was more than enough for a single Battle Armor.

For most five-ring Soul Kings, even carrying 300 jin in battle would be a huge burden. Even if they could bear the weight, their speed would be drastically reduced.

But Mu Yang and Shui Bing'er were different. Though they appeared to have lean, well-proportioned figures, after cultivating Sun Body Refinement, they could transform into humanoid war beasts if necessary.

300 jin? That was nothing!

Moreover, using more materials for the Battle Armor wasn't without benefits.

Though the enhancement effects wouldn't change, the armor's physical defense would be significantly improved.

Take Shui Bing'er as an example. With a Battle Armor that granted roughly a 20% power boost, plus her mastery of the Extreme Ice Secret Technique, once she wore a Spirit Refined Cold Heart Iron One-Word Battle Armor, she would essentially be a combination of a seven-ring Control-type Soul Sage, a seven-ring Assault-type Soul Sage, and a seven-ring Defense-type Soul Sage.

Unless an eight-ring Soul Douluo appeared, defeating Shui Bing'er in a one-on-one fight would require a battle of attrition.

After all, energy followed the principle of conservation.

A One-Word Battle Armor could allow a five-ring Soul King to fight like a seven-ring Soul Sage, but since their actual soul power level was much lower, their endurance wouldn't match that of a genuine Soul Sage.

Setting aside one piece of Cold Heart Iron, Mu Yang turned to Shui Bing'er and said, "Bing'er, are you ready?"

"I'm ready!"

Shui Bing'er nodded.

"Good. When I tell you, you'll need to keep dripping your blood onto the Cold Heart Iron. Otherwise, once the Spirit Refinement is complete, it'll be difficult for it to fully become part of your life."

Mu Yang instructed.

Spirit Refinement was different from Thousand Refinements. Recognizing ownership of Thousand Refined metal was simple—just dripping blood when the Thousand Refined glow appeared was enough.

But for a perfect recognition of Spirit Refined metal, if the user wasn't a blacksmith, they needed to keep dripping blood throughout the Spirit Refinement process to establish a life connection. Only then could the finished metal fully integrate with their body.

Of course, this was just the optimal requirement. Spirit Refined metal could still be used without blood recognition, but it wouldn't be as seamlessly controlled by the user.

For ordinary soul tools, this step wasn't necessary, but for Battle Armors, perfection was essential.

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