Steel Cavalry of Dinon

Level 4 EARTH/Dinosaur Pendulum Effect
1600 ATK / 2600 DEF

At the start of the Damage Step, if this card battles a Pendulum Monster: This card's ATK and DEF become half its current ATK and DEF until the end of the Damage Step.

Rulings – Yugipedia

Printings:

Breakers of Shadow Sneak Peek Participation Card: BOSH-ENSP1 (Ultra Rare) - 2016-01-09
Breakers of Shadow: BOSH-EN000 (Rare) - 2016-01-14

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.12