Rainbow Gravity [RYMP-EN057] Common BT6-094 the ATK of that monster

the ATK of that monster your opponent controls becomes half its current ATK

When this card declares an attack: You can return all Spell and Trap Cards your opponent controls to the hand

While “Necrovalley” is on the field

and this card from your Graveyard

Set: Legendary Duelists: White Dragon Abyss Card type: Normal Spell Rarity: Common If "Cyber Dragon" is in your GY: You can activate 1 of these effects

Rainbow Gravity [RYMP-EN057] Common BT6-094 the ATK of that monsterSet: Ra Yellow Mega Pack Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 If you have 7 "Crystal Beast" cards with different names on the field or in your Graveyard: Special Summon 1 "Rainbow Dragon" or "Rainbow Dark Dragon" from your Deck or Graveyard, ignoring the Summoning conditions.