These cards made their debut in the Black & White: Boundaries Crossed expansion back in November 2012, with their final appearance being in the Black & White: Plasma Blast expansion in August 2013
Speaking of the backside, I think the equipment is actually sneakily strong
First of all, the Black Dragon deck is left with a sweep right if the key initial mover, Black Metal Dragon, does not come in, but in the case of the Vistead axis, you can special attack the Black Holy Dragon and draw the 6th axis Xyz Holy Horn Dragon King - Atums along with the Vistead axis
However, Ive been out of the game for quite a while now so the money is way more preferable than having the card, no matter how rare it is
When buying vintage cards, especially online, always ask for detailed photos of the front, back, corners, and edges
Before we get into the nitty-gritty details, here is a rundown of each type of Role Token in MTG