>>530433741
You want to eventually have your own MLB Kitasan so you can borrow more niche cards from support instead of being forced to borrow Kitasan every single time.
Yeah, you won't MLB her on her first banner, but you should be perfectly able to get 2 copies and then get the rest during her rerun with higher rates.
Rolling for Kitasan now also will net you a shit-ton of SR cards to make your umas stronger.
Anyone with a brain should be able to understand this.