Actually, only Kael understood just how much benefit he gained from this transition to Mechanical Mage and letting go of the Incubus bloodline constraints for ascension.
The "Mind Net of Kael" was already a weakened manifestation of the "domination" power in the effect of Kael's Domain.
The human-shaped chess pieces scattered across the black-and-white chessboard landscape were reflections of each person Kael had defeated, their past combat abilities converging and being dominated by Kael, thus becoming part of his Domain.
After all this combat experience was consolidated, Kael possessed an enigmatic ability that would not directly appear on the system panel.
This ability was akin to a sixth sense, allowing Kael, when facing enemies, to instinctively know which skills to use instead of sifting through his vast array of abilities.
By bypassing the cumbersome search results, his sixth sense would instinctively inform him of the appropriate skill to use.