Zack is the second (and at the moment, the only other) Armored Rider to use a Jimber Arms form, also the fourth Rider (fifth if you count Mitsuzane who became the second Zangetsu Shin after his brother's "demise") in the TV series to use an Energy Lockseed. He is also the third Rider from Team Baron to use an Energy Lockseed, following his teammates Kaito and Peko (alternate universe only).