Swing: X
X Swing can be any die between 4 and 20. Swing Dice are allowed to be any integral size
between their upper and lower limit, including both ends, and
including nonstandard die sizes like 7 or 13.
Clarifications:
- X, (Swing Twin): Twin Swing dice can NOT have different Swing dice, they must have the same swing dice, or 1 swing and a number.
- X/ (Swing Option): Option dice can NOT have Swings as either side of the Option.