Physical Training, Improving the Body.
Cain stared at the runes on his flesh with satisfaction in his eyes. He had completed the remaining Agility-based {Rune of Swiftness}, and the creation of the first regular runic array he had ever seen was unfolding right before his eyes.
The runes rearranged themselves by phasing across his skin as though it was the surface of an ocean. This was made possible because the changes occurring weren't completely physical, but had elements of the spiritual world working behind them.
A subtle heat unlike the pain that came with inscribing runes glided across his left leg. Eventually, the nine runes all inter lapped and formed a more solid rune that looked way more complex and outstanding than basic runes, immediately drawing Cain's eyes in.
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{Congratulations to the host... You have successfully created a basic rune array...}
{Array of the Fast}: Type(Agility)...