Thought Lash
Masters Edition II — Rare
Enchantment
Thought Lash rulings:
2008-10-01: If your library has no cards in it, you can’t activate the last ability.
2004-10-04: If you don’t pay Thought Lash’s cumulative upkeep, you’ll sacrifice Thought Lash as normal, then, when its triggered ability resolves, you’ll exile all cards in your library.