Tarzec, Duskmantle Thief

Hexproof, unblockable
Whenever Tarzec, Duskmantle Thief deals
combat damage to a player, that player exiles the
top three cards of his or her library and loses life
equal the number of cards exiled this way.
Pay 5 life, exile the top ten cards of your library: Tarzec, Duskmantle Thief loses all his abilities.
Any player may activate this ability.