Releasing a tired sigh and deciding the best course of action was to ignore the floof, Aoni pushed his fingers into the newly rooted Moss clinging to the ceiling of the Cavern and began adding points.
The first objective was, of course, to maximize its durability; however, by the time it broke through to the F Rank, he noticed something annoying that he'd carelessly overlooked.
The cost of doing so.
In a sense, although the Moss showed up as a singular item on his Summon's Display since it was the collective of four original summons, its cost had multiplied by the same factor.
So, instead of being 75 points to bring its durability from G+ to F-, it was instead 300, then 400, and the cost kept spiking the higher it went. Thankfully, while the expenditure was high, the return was as well.