>>48408753reborn uses a system called field effects which basically completely benefits gym leaders, and amaria's is one of the biggest cases of a gym leader being hard carried by her field
the field activates all rain and water-based abilities at all times, as well as activating things like schooling and the like
her whole gimmick is abusing the whirlpool that now deals 1/6 HP per turn rather than 1/8 that also confuses, as well as an immediate and 1.5x stronger (alongside the initial water-type move boost of the field) to go from the water surface field and the underwater field to completely fuck around with you
https://pokemon-reborn.fandom.com/wiki/Water_Surfacehttps://pokemon-reborn.fandom.com/wiki/Underwaterfield effects have a fucking novel's worth of information so there you go
as for illuminate starmie, i have no fucking clue, might've been an accidental wrong ability?