Time of Bad Omens

Time of Dark Omens enters the battlefield with three time counters on it.
At the beginning of your upkeep, remove a time counter from Time of Dark Omens, If no counters were removed this way, put three time counters on Time of Dark Omens and create a black 13/13 legendary Horror creature token named "Bad Omens" with Flying, haste, trample, indestructible and "at the end of turn, exile Bad Omens".