Chapter: A 2.1 times speed increase. It must be understood that this is a speed increase that breaks through limits, and it doesn't just boost movement speed, but enhances movement speed, slashing speed, neural reflex speed, and so on. Naturally, there is a burden.
If it weren't for Su Xiao's high base true stamina of 147 points supporting him, he wouldn't have been able to last this long. Including the bonus from the Demon Hunting King, his true stamina attribute was 149 points, unable to break through the 150-point barrier.
When Su Xiao first entered this world and fought against those dozens of contractors, he had already noticed this.
Mana value was not the limiting factor for Shadow Flame; the real limitation was stamina. During ultra-limit high-speed movement, slashing, and perception, stamina consumption would multiply.
As for Shadow Flame's Mode 1, which Su Xiao called Blade Shadow Flame, its advantage was that the power of blade techniques was partially enhanced. After killing an enemy of the same rank, it could restore 20% of mana, and the consumption of stamina and mana was relatively low.
The benefit was that at the very start of a battle, Su Xiao could force the Cyan Steel Shadow energy on his blade to ignite into Shadow Flame, because this didn't require considering the body's burden—he could forcibly ignite the Shadow Flame on the blade.
The downside was that he couldn't enjoy the speed boost from Shadow Flame.
As for Shadow Flame's Mode 2, the restriction release, meaning all the Cyan Steel Shadow energy in his body ignited into Shadow Flame, it would bring a speed increase, and the power of blade techniques would be fully unleashed. As a cost, stamina consumption would rapidly increase. This state represented Su Xiao's strongest combat power.
The advantage was increased speed, and the power of blade techniques was further elevated compared to Blade Shadow Flame.
The disadvantage was the high stamina consumption. He had to wait until the activity of the Cyan Steel Shadow energy reached 100% before he could ignite his whole body. If he forcibly ignited the Cyan Steel Shadow energy within his body, Su Xiao would injure himself before the fight even started.
Compared to the power of Shadow Flame, its drawbacks were within Su Xiao's acceptable range. The reason was that as his stamina attribute increased, the duration he could maintain full-body Shadow Flame would grow longer and longer.
'Blade Shadow Flame' and 'Full-Body Shadow Flame' each had their own strengths. For regular combat, he used Blade Shadow Flame; when facing a powerful enemy or in a desperate situation, he used 'Full-Body Shadow Flame.'
A blue light flickered in Su Xiao's eyes, and blue flames rose on Dragon-Slaying Flash, but only for an instant. The blue flames then converged and vanished into the long blade. Blue patterns appeared on the blade of Dragon-Slaying Flash, making it look sharper. The Blade Shadow Flame state was activated.
Undoubtedly, this would become one of Su Xiao's most commonly used abilities in the future. Blade techniques remained the core, with the Cyan Steel Shadow ability as a supplement.
Abilities were static; people were dynamic. Su Xiao felt that the current Azure Shadow King was only its most initial form. Once it reached a certain level, Azure Shadow King would undergo changes, after all, Azure Shadow King was only at Lv.1.
The only problem was that, so far, Su Xiao hadn't found a way to upgrade Azure Shadow King.