the highest rank a stat can be raised to via spend; uncapped if omitted
Optionalcost
cost?:(stat:string,rank:number)=>number
points one more rank of stat costs, given the rank being bought (1 for the first
point spent into it, 2 for the second, and so on); a flat 1 per rank if omitted
the highest rank a stat can be raised to via
spend; uncapped if omitted