Twinned spell

When you cast a spell that targets only one
creature and doesn't have a range of self,
you can spend a number of sorcery points
equal to the spell's level to target a second
creature in range with the same spell (1
sorcery point if the spell is a cantrip). To
be eligible for Twinned Spell, a spell must
be incapable of targeting more than one
creature at the spell's current level.