Although he had realized there was a problem, nothing showed on Chen Yi's face.
Refocusing, Chen Yi considered what each option represented.
He first directly ignored the third option. It offered the smallest improvement.
The crystallization of the first direction brought not only life-saving capability, but also greater sturdiness for his techniques.
Flame Demon Phantasm, Blazing Sword, Left Hand of the Flame God... all of these techniques had physical form.
No matter how Chen Yi wanted to express burning, he could not avoid its manifestation in the Material World, nor could he avoid the most basic force.
Flames without substance were of little significance unless they could kill instantly.
Because enemies could simply charge through them.
When an ordinary person's finger quickly passed through a candle flame, it would not suffer much damage.
For warriors on Chen Yi's level, Heart Fire was powerful, but it would not change much.
Burning required time.
Even Flame Severance, a technique purely meant to kill through burning, possessed substance.
In Chen Yi's eyes, this breakthrough direction had tremendous potential.
The reason he called it potential was because a technique's sturdiness depended not only on Mana, but also on the technique itself and Elemental Particles.
Mana was merely one influencing factor.
To put it into practical use, he would need to improve his techniques specifically.
The second direction was doubled Mana. If he chose this, Chen Yi could cast spells by simply overpowering everything with sheer force.
With techniques of the same level, you put in 50,000 Mana while I put in 100,000. Mine would simply be stronger than yours.
That was how Chuka disgusted other Spacetime-type users.
But this option could not take Life Characteristics into account, and it would also slow the rate of future Mana growth, making its negative impact on Chen