Artifact, 6 (6) Each opponent who controls more creatures than you can't play creature cards. The same is true for artifacts, enchantments, and lands. Mages dare not attempt magic in its grotesque presence.
Illus. David Martin
8/1/2008: Spelling this out completely: -- Each opponent who controls more creatures than you can't cast creature cards. -- Each opponent who controls more artifacts than you can't cast artifact cards. -- Each opponent who controls more enchantments than you can't cast enchantment cards. -- Each opponent who controls more lands than you can't play land cards.