Alien Kid

Level 4 LIGHT/Reptile Effect Monster
1600 ATK / 700 DEF

Place 1 A-Counter on all monsters Special Summoned to your opponent's side of the field. (If a monster with an A-Counter battles an "Alien" monster, it loses 300 ATK and DEF for each A-Counter during damage calculation only.)

Rulings – Yugipedia

Printings:

Crimson Crisis: CRMS-EN084 (Super Rare) - 2009-03-03

Prices:

Cardmarket: 6.98 €
TCGplayer: $ 5.52