Hydreigon (SWSH037) (Prerelease Promo) [Sword & Shield: Black Star Promos] 141 you can negate the Summon

you can negate the Summon of a monster and destroy it

if your other DARK Spellcaster monster battles an opponent's monster (Quick Effect): You can send this card from your hand or face-up from your field to the GY

This card gains 600 ATK and DEF for each card in your hand

Special Summon 1 Level 4 "Magnet Warrior" monster from your Deck (this is a Quick Effect)

Set: HeartGold & SoulSilver: Unleashed Type: Fire

Hydreigon (SWSH037) (Prerelease Promo) [Sword & Shield: Black Star Promos] 141 you can negate the SummonSet: Sword & Shield: Black Star Promos Type: Darkness Rarity: Promo Retreat cost: Colorless,Colorless,Colorless