parse
Parses a mana cost string into tokens and computes values.
Return
Promise resolving to the parsed mana cost
Parameters
cost
A mana cost string such as {2}{G}{U} or {G/U}
Parses a mana cost string into tokens and computes values.
Promise resolving to the parsed mana cost
A mana cost string such as {2}{G}{U} or {G/U}