This is a Yu-Gi-Oh! "Exarion Universe" card, specifically the YS18-EN015 Common 1st Edition variant.
This card is an Effect Monster with the Beast-Warrior type, Dark Attribute, and Level 4.
It has 1800 ATK and 1900 DEF.
Its effect allows it to lose 400 ATK during your Battle Step when attacking a Defense Position monster, in exchange for inflicting piercing battle damage.