Professor Oak's New Theory L2: Steelix Constructed Standard Deck · No. 015/019 Illustrated by Ken Sugimori Professor Oak's New Theory price & value Other printings of Professor Oak's New Theory L1: HeartGold Collection #068/070L2: Tyranitar Constructed Standard Deck #015/019 More by Ken Sugimori Marowak — DP5: Cry from the MysteriousGloom — DP5: Cry from the MysteriousUxie — DP5: Cry from the MysteriousOddish — DP5: Cry from the MysteriousBuck's Training — DP5: Cry from the MysteriousDratini — DP5: Cry from the MysteriousMesprit — DP5: Cry from the MysteriousTauros — DP5: Cry from the MysteriousWeepinbell — DP5: Cry from the MysteriousMisdreavus — Awakening LegendsEntei — Awakening LegendsPokemon Breeder Fields — Awakening Legends