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, a spell must be incapable of
targeting more than one creature at the spell's
current level. For example, Magic Missile and Scorching Ray aren't eligible, but Ray of Frost is.