Singularity Fiend

Level 1 DARK/Fiend Effect
0 ATK / 0 DEF

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.

Rulings – Yugipedia

Printings:

Maze of the Master: MZTM-EN042 (Secret Rare) - 2025-03-13

Prices:

Cardmarket: 1.00 €
TCGplayer: $ 0.45