Just a heads up, if you want this on all platforms you need to unlock her on ps4 separately from the rest. This is because Sony doesn't allow cross-progression for the game. Thankfully it's not a hard unlock so it's an easy get.
It is limited! I read somewhere that it is available till the end of the next patch, which they said would be around January times, you just have to play 5 games 😄 not win, just play!