Arcane Conjunction

Search your library for an instant card, reveal
that card, put it into your hand, then shuffle. At
the beginning of your next upkeep, if you did not
cast the revealed card, you lose the game.
"I have discovered too much, delved to deep to forsake
my research. If the world must pay for my hubris,
then so be it."
- Arcantos, the Prodigious