House on the Rock

Timeslip {1}{u/r}{w/u} (When this permanent
enters, you may pay it's Timeslip cost. If you
do, create a token that's a copy of this
permanent, only it has Vanishing 2.)

When House on the Rock enters, each player
exiles the top three cards of their library.

When House on the Rock leaves the
battlefield, each player may play the exiled
cards until their next upkeep.