If you control no other creatures, you won’t sacrifice anything.
01-05-2012
wotc
If Demonic Taskmaster leaves the battlefield after its ability triggers but before it resolves, you’ll still have to sacrifice a creature. Notably, if you control two Demonic Taskmasters and no other creatures, each one will force you to sacrifice the other.
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.