Astryx Void Hunter
Effect Monster
DARK Psychic
★7 ATK 2500 DEF 1800
If your opponent Special Summons a monster(s) and you control no monsters (except during the Damage Step):
You can Special Summon this card from your hand.
If this card is Special Summoned: You can banish 1 card from your opponent's GY face-down.
Once per turn, when your opponent activates a monster effect in the GY (Quick Effect):
You can banish 1 card from their GY face-down; negate that effect.