Numeron Wall

Level 1 DARK/Fiend Effect
0 ATK / 0 DEF

If you control no cards, except "Numeron Wall(s)" (Quick Effect): You can send this card from your hand or field to the GY; activate 1 "Numeron Network" directly from your hand or Deck. You can only use this effect of "Numeron Wall" once per turn. When you take battle damage: You can Special Summon this card from your hand, and if you do, end the Battle Phase after the Damage Step.

Rulings – Yugipedia

Printings:

Battles of Legend: Armageddon: BLAR-EN020 (Ultra Rare) - 2020-07-23
Maximum Gold: El Dorado: MGED-EN081 (Rare) - 2021-11-18

Prices:

Cardmarket: 0.16 €
TCGplayer: $ 0.17