Eater of Millions

Level 1 DARK/Fiend Effect Monster
? ATK / ? DEF

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 5 or more cards from your hand, field, and/or Extra Deck, face-down. This card gains 100 ATK/DEF for each face-down banished card. This card cannot be Tributed, nor used as material for a Fusion, Synchro, or Xyz Summon. Once per turn, at the start of the Damage Step, if this card battles an opponent's monster: You can banish that opponent's monster, face-down.

Rulings – Yugipedia

Printings:

Raging Tempest: RATE-EN032 (Common) - 2017-02-09
2017 Mega-Tin Mega Pack: MP17-EN196 (Common) - 2017-08-24
Battles of Legend: Relentless Revenge: BLRR-EN078 (Ultra Rare) - 2018-06-28
Maximum Gold: MAGO-EN126 (Rare) - 2020-11-12

Prices:

Cardmarket: 0.40 €
TCGplayer: $ 0.23