Necrovalley [AP04-EN003] Ultimate Rare CRU077 Neither player can activate cards

Neither player can activate cards or effects in response to this card's activation

you can Special Summon 1 Level 4 or lower monster from your hand

the owner of the returned monster selects and sends 1 card in his/her hand to the Graveyard

Increase the ATK of this card by 300 points for each card in your Graveyard that includes 'Elemental Hero' in its card name

when your opponent would Special Summon exactly 1 monster: You can send this face-up card to the Graveyard

Necrovalley [AP04-EN003] Ultimate Rare CRU077 Neither player can activate cardsSet: Astral Pack 4 Card type: Field Spell Rarity: Ultimate Rare All "Gravekeeper's" monsters gain 500 ATK and DEF. Cards in either player's Graveyard cannot be banished. Negate any card effect that would move a card in the Graveyard, other than itself, to a different place.