if professional roller derby was a thing on alternia which blood color on the hemospectrum would be the ones playing it? iirc burgundy/rustbloods played baseball right? in hiveswap?

Likely, every Caste would be able to play, but the Higher Bloods would be the only ones allowed to use/able to afford bigger and more secure vehicles, with Rusts maybe not even going around with a vehicle at all.

Arena Stickball is played by all sorts of Castes, but the most dangerous positions are Rusts because they don’t care if they die. Also Arena Stickball isn’t ‘baseball’, but rather this frivolous combination of Baseball, American Football, Billiards and god damn Quidditch of all things. The Arena Stickball Cue Bats, too, sort of remind me of Cricket Bats, so maybe add that to the bizarre mix of sports.