Skilled Blue Magician

Level 4 LIGHT/Spellcaster Effect
1800 ATK / 1800 DEF

Each time a Spell Card is activated, place 1 Spell Counter on this card when that Spell Card resolves (max. 3). You can Tribute this card with 3 Spell Counters on it; Special Summon 1 "Gaia The Fierce Knight" monster from your hand, Deck, or Graveyard. You can banish this card from your Graveyard, then target 1 card you control that you can place a Spell Counter on; place 1 Spell Counter on it.

Rulings – Yugipedia

Printings:

Secrets of Eternity: SECE-EN032 (Super Rare) - 2015-01-15
Secrets of Eternity: Super Edition: SECE-ENS07 (Super Rare) - 2015-02-26
Speed Duel: Battle City Box: SBCB-EN181 (Common) - 2020-11-26

Prices:

Cardmarket: 0.11 €
TCGplayer: $ 0.24