For Elio, there is no 'ultimate team' since every composition of the 'mons either captured or under his care will inevitably get the job done - having trained each of them to such levels where they can easily compete with Champion-level opponents with the utmost ease. So despite their either weak presence or docile demeanor some of them give off in part to their comfortability around their master, they're quite skilled in their craft and pack a rather lethal punch when underestimated.

In terms of battle mechanics, Elio's mastered a large variety of them to the point where it ultimately wouldn't matter whichever's used against a fellow Champion, so long as it serves its purpose in the grand scheme of his myriad and interchangeable battle plans and combat tactics. He does, however, favor [Mega Evolution] and [Crystallization] due to their respective sublime appearances that often match most of his teammates' respective aesthetics and personal tastes.

Note: The Crystallization phenomenon is derived from the in-development fan game, [Pokemon Azurite] - which originates from the Kuria region's native legendary.