Photon Booster

Normal Spell

Target 1 Level 4 or lower LIGHT monster on the field, except a Token; the ATK of all monsters currently on the field with its name become 2000, until the end of this turn.

Rulings – Yugipedia

Printings:

Photon Shockwave: PHSW-EN052 (Rare) - 2011-11-10
Duelist League 18 participation cards: DL18-EN013 (Rare) - 2014-06-27

Prices:

Cardmarket: 0.11 €
TCGplayer: $ 0.17