I like the use of the Rhotuka term.
I don't know about calling the scorers "Gukkos". There will definitely be rahi with that name, and even though it is meant to reflect the rahi that they have in their region, I don't think it should be both the suit name and the role. The suit is fine, just the player should have a different title. The other 2 roles are named after what they do, so maybe call them gliders, jets, etc. ... or the ball.
The Bryha part seems like too much going on for one game. It's not bad, but I don't think it's really needed.