If you control no face-up monsters, except DARK Fiend monsters: You can Special Summon this card from your hand, then you can add 1 “Kraata” Spell/Trap from your Deck to your hand, also you cannot Special Summon Effect Monsters for the rest of this turn, except DARK Fiend monsters. You can only use this effect of “Erosive Kraata Ul” once per turn. Cannot be destroyed by battle. Monsters your opponent controls lose ATK/DEF equal to this card’s Level x 600.
