Basilisk

. .

Constitution Saving Throw: DC , each in a -foot . If the monster sees its reflection in the , the monster must make this save.
First Failure: The target has the Restrained condition and repeats the save at the end of its next turn if it is still Restrained, ending the effect on itself on a success.
Second Failure: The target has the Petrified condition instead of the Restrained condition.