Think Ruin Crab or Altar of the Brood: Theyre powerful, but require the mill player to put some work in to make it happen
I especially liked the holo energy cards from this set, which reminded me of the "Energize Your Game Cycle" cards that Wizards of the Coast released in Pokmon Leagues in 2002, shortly before they lost the licence
It's a moment that has only ever been seen in two dimensions before, both in the original game on the SNES and then in the Pixel Remaster collection, so to see it reimagined as MTG artwork is pretty special, and via an entirely new card, not a reskinned one, no less
Opening Hand 6 Even without a land, this hand has plenty of mana, and is probably a reticent keep
Skyshroud Claim is generally the best since it puts lands into play untapped, but the others have advantages depending on your strategy
You have to sac a Land to the ability to cast it, so you might get it countered and just lose a Land, but it's worth the risk