Marit Lage, Doom of Dominaria

Flying, Indestructible
When Marit Lage, Doom of Dominaria comes
into play, tap all nonland permanents your
opponents control.
{4} : Tap target permanent.
Only the faintest ancestral memories remain of the terrifying, frozen devastation Marit Lage unleashed
during the Time of Ice. -History of Dominaria, Vol. I