The only thing that keeps it from being an F-tier battle is potential Knight synergies
Allowing players to trade their duplicates for pack points would solve this problem and make all booster packs worth something, even if the loot is bad
Please keep in mind, for Challenge events, Shimmering Skies will be legal on August 30th, but the errata will go into effect immediately, so the Challenge event in Toronto on the weekend prior will have the errata in effect even though Shimmering Skies is not legal for the event
By holding the card whilst examining it, an animation of the illustration will play out, the camera zooming through each layer of the work to show other Pokemon in the background living in their natural surroundings, unique interactions between different species, and stories of the Pokemon world
Charizard cards have historically held value
Monumental Henge is like an already flipped Search for Azcanta for control decks