One Does Not is a common Enchantment — Aura card from Magic: The Gathering (Unknown Event, UNK).
Common
Unknown Event (UNK)
{1}{U}
Mana Value
2
Colors
U
Card Text
Enchant creature
Enchanted creature does not simply untap during its controller's untap step.
Enchanted creature has nonbasic landwalk. (It can't simply be blocked as long as defending player controls a nonbasic land.)
