
Cheapest priced copy (Mercadian Masques): $1.49 at Card Kingdom, near mint, their price list as of .
War Tax 

Enchantment · Uncommon · Mercadian Masques · #113
{X}{U}: This turn, creatures can't attack unless their controller pays {X} for each attacking creature they control.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $1.49 to $19.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mercadian Masques | 113 | Uncommon | $1.49 | $19.99 |
3 rulings from Wizards of the Coast
- 4 October 2004You can choose X=0. This doesn’t have an effect most of the time, but it does mean that creatures can’t attack unless the controller chooses to pay the cost (a cost of zero is not automatically paid, so the controller can choose to not pay).
- 4 October 2004The ability only applies to attackers declared after it resolves. It will not add costs to any attackers already announced.
- 1 February 2007In the Two-Headed Giant format, you still only have to pay once per creature.