Magic: The Gathering Comprehensive Rules Changes
Masters Edition to Lorwyn (Single Change View)
| Old rule (Masters Edition) | New rule (Lorwyn) |
|---|---|
| 104.3c. [Click to view all changes.] | |
|
104.3c. The symbols {X}, {Y}, and {Z} represent unspecified amounts of mana; when playing a spell or activated ability with {X}, {Y}, or {Z} in its cost, its controller decides the value of that variable. |
104.3c. The symbol {X} represents an unspecified amount of mana. When playing a spell or activated ability with {X} in its cost, its controller decides the value of that variable. |