Talk:Rider/@comment-43512479-20190825162327/@comment-4141313-20190827143104

With Sima Yi, its because Zhuge Liang is a Caster. Both Reines and Sima Yi have a thing where they have to be superior to Waver and Zhuge Liang, so while they would normally fulfill the Caster Class, just so they can have a leg up on Zhuge Liang they made themselves a Rider.

Though if you want to be even more technical, Trimmau, Reines' Mystic Code Maid, can take on the form of a horse for her to ride.