Dino Destruction (SBTK-ENS03) - Speed Duel: Trials of the Kingdom 1st Edition

Activate this Skill during your Main Phase. Once per turn, you can choose 1 Level 6 or higher Dinosaur monster you control. This turn, if it attacks a Defense Position monster, inflict piercing battle damage. Flip this card over at the end of the turn you activated this Skill.