Phantom Skyblaster (EGS1-EN010)

When this card is Normal or Flip Summoned: You can Special Summon any number of "Skyblaster Tokens" (Fiend/DARK/Level 4/ATK 500/DEF 500), up to the number of monsters you control. Once per turn, during your Standby Phase: You can inflict 300 damage to your opponent for each "Skyblaster" monster you control. "Skyblaster" monsters you control cannot declare an attack during the turn you activate this effect.

Fiend / Effect, Egyptian God Deck: Slifer the Sky Dragon