Soul Swallowing Mirror

Soul Swallowing Morror enters
the battlefield with {x} time counters.
On your upkeep remove one time counter from
Soul Swallowing Mirror.
{t} exile target nonland permanent with converted
mana cost up to the number of time counters on
Soul Swallowing Mirror.
They thought they could look away, but alas their reflection became the last thing they ever seen.