Evanesce

You may put your hand on the bottom of your library rather than pay Evanesce's mana cost.
Counter target creature, artifact, or enchantment spell not cast from a player's hand. You may put that card on the top or bottom of its owner's library.
"Sought after, and sought before, I've sought myself, until I'm sought no more. Where am I?" - Dearthwood Riddles, Vol. IV