Grey Hat Assignment

Whenever an opponent loses life, hack that opponent. (To hack, choose an opponent. He or she reveals cards from the top of his or her library until he or she reveals a land card, then puts those cards into his or her graveyard.)
The term Grey Hat refers to a computer hacker or computer security expert who may sometimes violate laws or typical ethical standards, but does not have the malicious intent typical of a black hat hacker.