You cant keep it on the battlefield unless you have two energy counters, but that lets you build up energy quickly for other cards
1 per pack unless theres an Enchanted
You can obviously take some of this information with you into formats like Commander, as well, but just remember that Reanimator benefits from having multiple opportunities and targets, so Commander based Reanimator tends to work a little differently based on the singleton nature of the format
Let's start with the cost
I wish there were a way to zoom in on the art, but overall, the system is satisfying for casual (read: aging) Pokemon fans like me who arent interested in competitive play
A big driver of rising prices in previous Commander products are the exclusivity of certain cards (past examples include Flusterstorm, Scavenging Ooze, True-Name Nemesis, the free spell cycle from the Ikoria decks and more), so thats eliminated from these decks