Singularity Fiend [MZTM-EN042] Secret Rare

Set: Maze of the Master Card type: Effect Monster Rarity: Secret Rare Attack: 0 Defense: 0 When your opponent Special Summons a monster(s) (except during the Damage Step): You can discard this card and 1 Spell; destroy that monster(s). You can only use this effect of "Singularity Fiend" once per turn.