Better there and now public for anyone to use (why would they want to check that lol)
make the Battle Frontier hashset a ReadOnlySpan;
- since the list is sorted, use BinarySearch to reduce worst case from 43 ops to 6.
- no static ctor in RibbonRules (yay no nanosecond hiccup)
that was the last static HashSet in the repo 👀
18cc30d641