Like most trading card games, acquiring a popular card is a game of chance in Pokemon TCG
Cube designers tend to love this feature of hybrid cards, because it increases tense cross-appeal between drafters
Personally, I would be surprised if Dark Confidant were a problem in the Standard format
Reckless Handling can help find some artifacts that dont already have relevant tutors in the format but pales in comparison to a more reliable option
It also featured two excellent Commander decks, with the Avishkar-themed Living Energy giving you new ways to make Energy counters, and Eternal Might bringing back the many Zombies of Amonkhet with a new top-tier Zombie commander
Those cards can be a bit slow in more self-mill/reanimator focused GB decks, so Undergrowth Recon provides some free value for otherwise engaging with your gameplan