Soul Sculptor

Oracle Text

1W, T: Target creature becomes an enchantment and loses all abilities until a player casts a creature spell.

Card Rulings

10/4/2004 The creature stops being a creature (or any other permanent type) and is just an enchantment with no abilities.
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.