kaervek\'s glory

As an additional cost to cast this spell, sacrifice all permanents you control and discard your hand. Target player loses 5 life.

When this creature dies, you may exile it. If you do, search your library for an enchantment card, put that card onto the battlefield, then shuffle.

At the beginning of your upkeep, if you control no permanents other than this enchantment and have no cards in hand, you win the game.