Ehren, Lightsworn Monk

Level 4 LIGHT/Warrior Effect Monster
1600 ATK / 1000 DEF

If this card attacks a Defense Position monster, before damage calculation: Shuffle that monster into the Deck. Once per turn, during your End Phase: Send the top 3 cards of your Deck to the Graveyard.

Rulings – Yugipedia

Printings:

Light of Destruction: LODT-EN082 (Secret Rare) - 2008-05-13
Collectible Tins 2011 Wave 2: CT08-EN016 (Super Rare) - 2011-11-01
Duel Terminal 7b: DT07-EN059 (Duel Terminal Normal Parallel Rare) - 2013-02-01
Realm of Light Structure Deck: SDLI-EN011 (Common) - 2014-06-27
Rise of the True Dragons Structure Deck: SR02-EN021 (Common) - 2016-07-07

Prices:

Cardmarket: 0.19 €
TCGplayer: $ 0.45