Lorwyn (lrw)
#150 • rare • English • Foil
#150 • rare • English • Foil
Ashling's Prerogative 
1
Enchantment
As this enchantment enters, choose odd or even. (Zero is even.)
Each creature with mana value of the chosen quality has haste.
Each creature without mana value of the chosen quality enters tapped.
Each creature with mana value of the chosen quality has haste.
Each creature without mana value of the chosen quality enters tapped.
Illustrated by Warren Mahy
Links
Legalities
Not Legal
Not Legal
Not Legal
Legal
ModernLegal
LegacyNot Legal
Legal
vintageLegal
CommanderNot Legal
Not Legal
Rulings
The "chosen value" is either "odd" or "even." So either creatures with odd mana values enter tapped and creatures with even mana values have haste, or vice versa.
2007-10-01 • wotc
If a creature has X in its mana cost, that X is treated as 0 for the purposes of these effects. It doesn't matter what the value of X was while the creature was on the stack.
2007-10-01 • wotc