There are a bunch of Commander Classics like Hornet Queen, Nantuko Vigilante, Caustic Caterpillar, future strong cards like Haywire Mite, multiplayer classics like flying regenerator Fog of Gnats and the card drawing and recurring Grave-Shell Scarab, token making Ant Queen, game winning rampers like Moldgraf Monstrosity, Giant Adephage and Living Hive
Its not a great loss to not have a coin, as most Pokemon fans, unless theyre very new to the game, will have a number of coins laying around (and not likely to be used in games for the most part!)
Full breakdown: OP-16 Buggy Deck Guide
I don't think they have much impact on 60-card formats, but they definitely influenced how the Draft environment played out, and I hope to see more Battles at some point in the future
Rebirth (Legends, Fourth Edition) I cant help but enjoy the first line of the rule text of Rebirth, Greens first and only ante card