Key to the City is a rare Artifact card from Magic: The Gathering (Kaladesh Promos, PKLD).
Rare
Kaladesh Promos (PKLD)
{2}
Mana Value
2
Card Text
{T}, Discard a card: Up to one target creature can't be blocked this turn.
Whenever this artifact becomes untapped, you may pay {2}. If you do, draw a card.
