mtg booster box prices by set *** 10th Edition *** - SEALED - English - Magic Tenth X Core ALTR product(s) as available MTG: Dominaria United Booster Box

Despite Grixis Shadow being currently maybe the strongest deck in the format (thanks to Lurrus obviously) I think Deaths Shadow is not the correct way how you want to approach your tempo deck in the future

Being the only game in town for no-art lands would make Unstable more similar to Unhinged or Unglued , where if you wanted a certain subgroup of basics for your deck, you pretty much had to buy the set (or at least the lands from the set, which would force someone else to crack a box of the set to sell them to you)

It's good in aggro decks, effectively "attacking" as a 2-power creature on turn one as long as you make land drops

this card gains ATK equal to that banished monster's ATK, until the end of your opponent's turn