Wattjustment

Equip Spell

Equip only to a Level 3 or lower Thunder-Type monster. It gains 800 ATK, also its effects are negated. Each time it inflicts battle damage to your opponent: Draw 1 card.

Rulings – Yugipedia

Printings:

Starstrike Blast: STBL-EN051 (Common) - 2010-11-11
Battle Pack 3: Monster League: BP03-EN170 (Common) - 2014-07-31
Battle Pack 3: Monster League: BP03-EN170 (Shatterfoil Rare) - 2014-07-31

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.21