307: Spray pesticides! Spray pesticides like crazy!

It was at the very moment he forcibly pushed the Vitality Nourishment skill from the 'Ancient' rank to the 'Origin' rank.

A torrent of energy, ten thousand times more violent than what he felt now, exploded within his body without warning. It wasn't enhancement; it was pure destruction. His body, his spirit, his everything—all were torn into the most primitive fragments in that instant.

If Origin Level Vitality Nourishment hadn't forcibly repaired his very 'existence' at the last moment, pulling him back from the brink of annihilation, Lin Yu would have long since ceased to exist in this world.

An icy chill shot from the base of his spine straight to the crown of his head.

The thick stack of ten gold cards in his hand suddenly became scalding hot, as if urging him toward the abyss of destruction.

The boiling blood in his brain cooled instantly.

There is only a thin line between a madman and a fool.

He wanted to become stronger, to use the fastest speed to obtain power sufficient to crush everything.

But he didn't want to die.

He slowly lowered the arm that had been ready to slap down all ten cards, putting nine back and keeping only one.

One step at a time.

He had to precisely calculate every variable and every risk of this amplification system.

He slapped another Life Serum card onto himself. A warm green current circulated through his body, building a solid line of defense.

Then, he pressed the fourth Instant Burst Potion card onto his arm.

Boom!

The impact this time was even more violent than when the previous three had stacked.

The three violent energies that had reached a delicate balance in his body were brazenly disrupted by this fourth external force.

Tearing, pulling, colliding.

Lin Yu's body arched uncontrollably again, and the 'crackling' sounds from his bones were denser and clearer than before.

[All Attributes +21.6].

The numbers on the panel completed their fourth jump.

[All Attributes +218]!

It was still 60% of the previous increment.

Lin Yu forcibly mobilized his Spiritual Power, which had soared to 718 points, and began a new round of guidance and suppression.

This process was several times more difficult than the last.

Just keeping his body from collapsing almost exhausted his entire mental effort.

Twelve seconds.

The amplification effect began to wane.

Thirteen and a half seconds.

The effect disappeared completely.

The backlash from the four-fold stack arrived as expected.

The energy vortex formed within his body had exploded in size and rotation speed several times over, emitting a destructive aura that made even Lin Yu feel a pang of palpitations.

He used the old method.

He cautiously decomposed the vortex—which was powerful enough to instantly shred his heart—and spread it evenly throughout his body.

Intense pain surged.

He immediately slapped down three Life Serum cards.

Three powerful surges of life energy flooded in, barely managing to completely clear the spreading destructive force.

Lin Yu panted, his body trembling slightly.

This won't do.

The stacking of side effects wasn't a simple linear growth; it was exponential.

If he added one more, he wasn't confident he could still control it.

Even if he could, the amount of Life Serum required to clear the side effects would increase manifold.

The gains wouldn't be worth the losses.

He stopped his movements and sat in place, his brain beginning to work at high speed.

One amplification: +100.

Two: +160.

Three: +196.

Four: +218.

This was a typical geometric series summation with a common ratio of 0.6.

Then, its limit value... Lin Yu's Spiritual Power calculated rapidly.

100 / (1 - 0.6) = 250.

Theoretically, no matter how many Instant Burst Potions he stacked, the total attribute boost he could obtain would only infinitely approach 250 points, but never reach it.

Two hundred and fifty attribute points.

That was the upper limit of this potion system.

But this limit was built on a fatal paradox.

To get infinitely close to this value, one would need to stack the potion an infinite number of times.

And with each stack, the side effects would explode exponentially.

Perhaps by the seventh or eighth stack, he would be torn to pieces by that terrifying backlash.

This limit of 250 was essentially a castle in the sky—visible but unreachable.

Unless... Lin Yu's thoughts turned in another direction.

Could there be a lower bound for this 60% diminishing return?

When the value of each increment became so small it was negligible, would the side effects still continue to explode exponentially?

This was exactly the purpose of the experiment. Anyway, judging by the current situation, ten cards shouldn't be a problem. He could continue!

Once this thought arose, it could no longer be suppressed.

He wanted to verify it.

He took another deep breath and applied a thick shield of five Life Serum layers to himself.

Then, he took out the fifth Instant Burst Potion card.

Slap!

[All Attributes +13]!

Total boost, [+231]!

The backlash arrived as scheduled, more violent than the last.

Lin Yu gritted his teeth and consumed five full Life Serum cards before stabilizing his physical state again.

He didn't stop.

Sixth card!

[All Attributes +8]!

Total boost, [+239]!

This time, he used a full eight Life Serum cards to barely withstand it.

Fine beads of blood had already begun to seep from the surface of his body.

Continue!

Seventh card!

[All Attributes +5]!

Total boost, [+244]!

Twelve Life Serum cards!

Eighth card!

[All Attributes +3]!

Total boost, [+247]!

Twenty Life Serum cards!

Lin Yu's body was like a ragdoll that had been repeatedly torn apart, held together only by the underlying logic of Origin Level Vitality Nourishment and a massive amount of Life Serum.

But he had no intention of stopping.

Ninth card!

[All Attributes +2]!

Total boost, [+249]!

This time, he clearly felt that the growth momentum of the backlash vortex in his body had significantly weakened!

Though still powerful, it no longer showed that exponential explosion.

It's working!

Lin Yu's spirits were lifted.

Without hesitation, he slapped down the tenth card!

[All Attributes +1]!

Total boost, [+250]!

He had reached that theoretical limit!

And this time, the intensity of the backlash in his body was almost identical to the ninth time, with no growth whatsoever!

Just as I thought!

Suppressing the wild joy in his heart, Lin Yu slapped down the eleventh card!

[All Attributes +1]!

Total boost, [+251]!

Twelfth card!

[All Attributes +1]!

Total boost, [+252]!

The diminishing returns effect had a minimum threshold!

Once the single increment dropped to 1 point, it would no longer continue to decrease!

Correspondingly, that terrifying exponential stacking of side effects also came to a screeching halt, turning into a bearable, linear, and slight increase!

Found it.

He had found the true God-level BUG hidden beneath the fatal trap of this potion system!