Aron, the Ogdoadic King (Collector's Rare) [ANGU-EN007] Collector's Rare BT4-078 by banishing them

by banishing them

You can only use this effect of "Graydle Slime" once per turn

whose Level equals the number of cards sent to the GY

or Summoned monster

Set: Structure Deck: Dragon's Roar Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 All face-up Effect Monsters on the field are changed to Defense Position

Aron, the Ogdoadic King (Collector's Rare) [ANGU-EN007] Collector's Rare BT4-078 by banishing themSet: Ancient Guardians Card type: Effect Monster Rarity: Collector's Rare Attack: 2500 Defense: 2800 If this card is in your GY: You can Tribute 2 monsters; Special Summon this card. If your opponent adds a card(s) to their hand (except during the Draw Phase or Damage Step): You can send 1 random card from their hand to the GY. If a monster(s) your opponent controls is sent to the GY (except during the Damage Step): You can add 1 LIGHT or DARK Reptile