Cards List
U 0064 – ONE
Counter target spell with mana value 1 or less.
Instant
Standard
Pioneer
Alchemy
Historic
Timeless
Historic Brawl
Uncommon
Phyrexia: All Will Be One
- While a spell with {X} in its mana cost is on the stack, use the value of X that was chosen when it was cast to determine its mana value. Normally, this means that a spell with {X} in its mana cost will have a mana value greater than 1.