_Cost: 1 Sorcery Point_ When you cast a spell that has a duration of 1 minute or longer, you can spend 1 Sorcery Point to double its duration to a maximum duration of 24 hours. If the affected spell requires [Concentration](https://www.dndbeyond.com/sources/dnd/free-rules/rules-glossary#Concentration), you have Advantage on any saving throw you make to maintain that Concentration.