Instant, W (1)
Common
Target creature can't attack or block this turn.
A heavy weapon deals plenty of damage—but it does have to hit.
Illus. Jeff Miracola

10/4/2004: The ability only does something if used before attackers or blockers (as appropriate) are declared during a turn. If used after the creature is declared as an attacker or blocker, nothing happens.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Commander