I doubt that NPC will ever use legendaries in the game save for cases like N, who needed to use a legendary because of the plot.
There's a download tournament for PWT in which Sabrina uses Mewtwo, Falkner uses Lugia, Winona uses Rayquaza, and Fantina uses Origin Giratina. Given the PWT's debated place in canon, I find this interesting. --- ....because shutup. R - Hyuck hyuck hyuck!
Zekrom is genderless. Besides that doesn't make sense and it's irrelevant.
My point exactly. Why would she want a genderless pokemon to play for her "team" --- You only see what your eyes want to see. Why can't life be what you want it to be. You're frozen. When your hearts not open.