Stavros

I received a Kirai box as a gift, and I am deciding what I need to play her. However I had no particular plan to play her even though I own a few other resser masters. As she can summon Gaki, I think I would need a box, but before I go out and spend money on them, will I use them with other Resser masters? I don't hear much about them (or Kirai) from other players.