Your search for "Treecko - 003" revealed the following:
Swamp (003) - Arena League Promo 2006 (PAL06) from Arena League 2006, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: John Avon
Eldrazi Spawn (003) // Eldrazi Token (TPCA) from Planechase Anthology, available at 401 Games Canada. Rarity: Token Finish: Normal Card Text:Sacrifice this creature: Add C to your mana pool.//EldraziAnnihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.)
Hero (003) // Wizard (014) Token (TFIN) from Final Fantasy, available at 401 Games Canada. Rarity: Token Finish: Normal Artist: Josephine Chang & Ignatius Budi Card Text:Wizard: Whenever you cast a noncreature spell, this token deals 1 damage to each...
Goddess of Whim - MP1-003 - Super Rare from McDonald's Promos Series 1, available at 401 Games Canada. Rarity: Super Rare
Arlinn, the Pack's Hope (003) - Art Series (Gold-Stamped Signature) (AMID) from Midnight Hunt Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Emma Rios