Transformation Sequence because it fits with Sailor Shining Shot, and because it's a far, far more entertaining joke than Aimbot to me. Using their Devices literally triggers a transformation sequence as their Hazard/Barrier Jackets/Knight's Armour activates. Also, Kayleigh's been watching anime to learn about magical girls for at least a week.
Sailor Shining Shot: Kayleigh is the cheerful, friendly, not-completely-serious, gun-nut of the group. Faced with overly serious teammates—which, when the leader is named Calamity Witch is kind of a thing - she'd try to lighten the mood. Thus a not entirely serious name. See again watching magical girl anime for at least a week as 'research'.