Currently trending for well over $300 on the secondary card market for each card other than the Reshiram ex (which hovers just below that number), these BWR cards havent been seen before in the Pokemon TCG, and their gorgeous and memorable colors make them uncommonly exciting cards to chase
The Surveil Lands The surveil lands from Murders at Karlov Manor (MKM) are a bit of an update over the Theros temples, as surveil has a little bit more upside than scry with graveyard shenanigans
The big value in this card actually comes when it's paired with the next card on our list, but other artifacts from the TMNT set, like Hard-Won Jitte or Spicy Oatmeal Pizza, work well too
Its just a generally decent rule-setter that can stymie some of the more oppressive spellslinger, artifact and enchantress decks in your meta
Seeing as this card and many others herein are on the Reserved List (meaning they cant be reprinted) its value will likely only go up
While you may get access to the complete Secret Lair set, you can check individual cards that providers may choose to sell as singles at a fixed price