Steel Golem

Oracle Text

You can't cast creature spells.

Card Rulings

10/4/2004 You can put creatures onto the battlefield by means other than casting them.
10/4/2004 Yes, this only affects you.
4/1/2008 A “creature spell” is any spell with the type Creature, even if it has other types such as Artifact or Enchantment. Older cards of type Summon are also Creature spells.