Shien's Squire

Level 1 EARTH/Warrior Tuner Effect
300 ATK / 700 DEF

During damage calculation, in either player's turn, if a "Six Samurai" monster you control battles: You can send this card from your hand to the Graveyard; that monster cannot be destroyed by battle this turn.

Rulings – Yugipedia

Printings:

Storm of Ragnarok: STOR-EN026 (Common) - 2011-02-08
Samurai Warlords Structure Deck: SDWA-EN019 (Common) - 2012-06-21

Prices:

Cardmarket: 0.14 €
TCGplayer: $ 0.19