Kholohar, the Tower

As an additional cost, you may pay X life. If you do, put an indestructible counter on a number of permanents under your control equal to the life paid.
First Strike, Vigilance, Indestructible
If Kholohar, the Tower would be put into the graveyard or exile from anywhere, shuffle Kholohar, the Tower and all cards in your graveyard and in exile into their owner's library.