The Outcast: You Specialize in the Golden Light Mantra, While I Simulate the Four Sacred Beasts

To be honest, the Gundam in the description is really problematic. It's already reached that level; it could have been easily killed with a single slap of golden light, but instead, they had to put a Gundam in for dozens of rounds, then introduce the Four Holy Beasts, splitting up the effects of the Golden Light spell. It's utterly nonsensical; the author is clearly just indulging in wishful thinking.

The introduction gave me the impression that the Golden Light Mantra had been misused and turned into bizarre and ingenious tricks.

It's frustrating. The system's upgrade method is clearly stated to be the protagonist's enlightenment, leading to skill upgrades. However, each upgrade costs ten times more for the same effect. Why is the price so drastically different every time?

White hair and a youthful appearance are acceptable, but to look young again is truly difficult.

According to one person's interpretation, the golden light is merely a byproduct of the Golden Light Mantra refining one's life force...

Using the Golden Light Mantra with other attributes is putting the cart before the horse. The Golden Light Mantra is solely for cultivating and refining one's life force; the external golden light attribute is simply yang energy. Forcing in other attributes is counterproductive. While the Five Elements can indeed refine life force, adding extra elements to the purest form of life cultivation like the Golden Light Mantra only reverses its purpose.

It's a shame the Golden Light Mantra was changed like this. The Golden Light Mantra is a spell. Its essence lies in the spell itself. The golden light is merely an external manifestation, a byproduct of cultivation. It's fine for the author to use the golden light as the primary means; the manifestation of the golden light simply indicates a high level of cultivation.

It feels flashy but not practical.

According to the original setting, golden light is merely a derivative, so the Golden Light Mantra, which transforms into something like a Gundam, is essentially useless; adding various attributes is just flashy and pointless. The Old Master uses the Golden Light Mantra because he's too strong; a max-level character using a basic sword is just for fun.

The Golden Light Mantra should be as refined as possible, like a Gundam with extended skills. Imagine shooting someone with a gun, the bullet exploding, the gunpowder igniting (using the heat of the gunpowder to injure). Is that what your Golden Light Mantra is all about?