Gauntlet Warrior

Level 3 EARTH/Warrior Effect
400 ATK / 1600 DEF

During either player's turn: You can Tribute this card; each Warrior-Type monster you currently control gains 500 ATK and DEF, until the end of the next Damage Step that monster attacks or is attacked.

Rulings – Yugipedia

Printings:

Duelist Pack: Yusei 2: DP09-EN013 (Ultra Rare) - 2010-01-15
Battle Pack 3: Monster League: BP03-EN070 (Common) - 2014-07-31
Battle Pack 3: Monster League: BP03-EN070 (Shatterfoil Rare) - 2014-07-31

Prices:

Cardmarket: 0.09 €
TCGplayer: $ 0.19