Enchant creature
When Locked in the Cemetery enters, if there are five or more cards in your graveyard, tap enchanted creature.
Enchanted creature doesn’t untap during its controller’s untap step.
The enchanted creature can still be untapped in other ways. Locked in the Cemetery will remain attached, and the creature will continue to not untap during its controller's untap step.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.