sizeDie: readonly ["1", "1d2", "1d3", "1d4", "1d6", "1d8", "1d10", "2d6", "2d8", "3d6", "3d8", "4d6", "4d8", "6d6", "6d8", "8d6", "8d8", "12d6", "12d8", "16d6", "16d8"] = ...

An array containing the damage dice progression for size adjustments

sizeRoll function.