Palace Siege is a rare Enchantment card from Commander 2017 (C17), collector number 119. Current market price: $0.97, TCGplayer market prices via Scryfall.
As this enchantment enters, choose Khans or Dragons. • Khans — At the beginning of your upkeep, return target creature card from your graveyard to your hand. • Dragons — At the beginning of your upkeep, each opponent loses 2 life and you gain 2 life.