2017 Randomized Booster Releases of That Year : Aether Revolt , Amonkhet , Hour of Devastation , Ixalan , Iconic Masters , and Unstable Best Addition to Magic : Punch-Out Cards One of the challenges of constantly finding new design space includes leaning more into having either external game pieces (such as counters and tokens) or memory issues
Im about out of words for the week, but I also want to give a mention to Praetors Grasp (already expensive, could get even more so), Fallen Shinobi, Nashi, Moon Sages Scion and Silent-Blade Oni (ninjutsu goodness for the top of their library), Thief of Sanity (more flying and stealing) and Mnemonic Betrayal (the Yawgmoths Will for their yards) as more cards that could see a significant spike in coming days as Tasha begins her non-benevolent reign over all
but "just" killing a creature two-for-one was its most common role
Only 19 listings on TCGPlayer (and almost all are single copies) means that I think this is due for a correction fairly soon, especially if the deck keeps picking up steam
Then if there are twenty or more cards in your graveyard, you may play the exiled card without paying its mana cost