Labyrinth Sentinel

{t}: Add {c}.
{4}: Labyrinth Sentinel becomes a 5/5 colorless Artifact Creature with "All lands your opponents control enter the battlefield tapped." It's still a
land.
"When the Guardians fell, I lacked sufficient resources
to maintain the Labyrinth's security measures as they
were. But there is value and lethality in simplicity, as
the Anomaly now knows."