If you leave the game, the effect giving you control of the target creature ends
Like most Magic: The Gathering cards, the value of Chalice of the Void depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (The Lost Caverns of Ixalan Commander)
While I cant say theyre stronger than busted sacrifice-themed Jund commanders like Korvold, Fae-Cursed King or Prossh, Skyraider of Kher, Shattergang Brothers gets props for having a clear theme to build around
One of our goals with mechanics is to try to get it as succinct as possible so that we have room to put other things on the card, says Rosewater
Activate this ability only during your turn, before attackers are declared