Rain Storm (GLAS-EN066) [Gladiator's Assault]

"Select 1 ""Cloudian"" monster you control. Reduce the monster's ATK by 1000 or 2000, and apply the appropriate effect:<BR>- 1000 points: Destroy 1 Spell or Trap Card your opponent controls.<BR>- 2000 points: Destroy 2 Spell or Trap Cards your opponent controls."