At a slightly higher cost than a Standard release, youd want it to contain some juice as far as reprints go (its all reprints, after all!)
While theyre not rare enough to land a place in a list of rare Pokmon cards (and there are a lot of them on the market), theyre still pretty neat, especially Shiny Charizard GX
Valakut Exploration is basically a personal Howling Mine for landfall decks, but it can potentially draw multiple cards if you make multiple land drops
Call the Spirit Dragons For dragon tribal decks, Call the Spirit Dragons is a dream come true
Though, depending on how Voldaren Thrillseeker will be replaced post-rotation, the Agatha's Soul Cauldron variant may be just as viable in regularly climbing the rank ladder as well
Surge gives hexproof from anything, not just red and black spells