510 tomorrow's withered flower and behind the Ether door_2

But the time and Ether Resources consumed were several times that of the first type.

As for the third type, these were the randomly occurring learnable spells in the Arcane Castle.

This was indeed an "opportunity" that Advanced Mages would inevitably encounter.

Learning these random spells would consume even more time and resources.

But if one stumbled upon some extremely powerful legendary spell, that would be a huge gain!

"It is said that the random spells here had been left behind by the Calamity Mage..."

Such a thought had merely flashed through Matthew's mind.

"I already possess enough abilities and spells for myself."

"Why waste limited time and resources on a gamble?"

"Rather, I should continue to enhance myself."

His resolution gradually solidified.

Next,

Matthew devised a short spell training plan for himself.

The first part, Fusion.

This was targeted at abilities that were turned into spells which he had obtained from Soria.