Artifact Creature (CMC:4)
Cannot be blocked by walls. When Clockwork Swarm comes into play, put four +1/+0 counters on it. At the end of any combat in which Clockwork Swarm attacked or blocked, remove one of these counters. , : Put X +1/+0 counters on Clockwork Swarm. You may have no more than four of these counters on Clockwork Swarm. Use this ability only during your upkeep.
HM • ENAmy Weber
™ & © 1993—1995 Wizards of the Coast
Legal in: Legacy,Vintage,Commander
Oracle Text (click to copy):
View this MTG card on Gatherer
10/4/2004 Loses a counter even if it is affected by a Fog-like effect which prevents it from dealing damage. 10/4/2004 Can attack or block even if it has no counters. 10/4/2004 If the ability to add counters resolves when there are already the maximum number of counters on it, any counters over the maximum are simply not added.