King Beyond Time

When you cast this spell, pernaments lose Indestructible until end of turn.
Indestructible, Trample
King Beyond Time's Power and Toughness are
each equal to the amount of mana paid to cast
him, including additional costs.
When this creature enters the battlefield, destroy
all other creatures with greater power or
toughness than this creature. If a creature would
be sent to the graveyard this way, instead put it
on the bottom of its owner's library.