A new Misdreavus, huh.
HP: Typical Misdreavus.
Deep Sleep: Nice to see Deep Sleep revived again but with more impact for the card than the previous Hidden Legends Relicanth which was all luck driven. It certainly makes the card here with the automatic measures.
Return Trance: The oddest card effect ever actually but it's a nice automatic payoff for with the next attack and Deep Sleep.
Dream Eater: 30 for one energy. Of course Deep Sleep makes it worth it. It's a very cost effective card, particularly with the attacks.
Energy cost: With the right cards, can fit in any deck as it's so cheap.
Retreat cost: Typical Misdreavus.
Overall: A nice revival of a great Pokemon Power as it makes Misdreavus a nice cost effective stall tactic card that could fit anywhere. 8/10 easy.