If there are no legal targets to choose, perhaps because all your opponents have hexproof, the ability is removed from the stack with no effect. You won’t draw a card. This is also true if the target opponent becomes an illegal target in response to the ability.
17-11-2017
wotc
The opponent chooses whether they sacrifice a creature, pays 3 life, or allows you to draw a card. That player can’t make an impossible choice, such as sacrificing a creature while they control no creatures.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
Wesley Burt2014-07-18
