@JeremyECrawford Not sure if you've been asked this before;Can you perform somatic components of spells with a hand holding an arcane focus?
— Joshua Klein (@JoshuaKlein17) January 2, 2016
A hand with a material component, including a spellcasting focus, can perform somatic components (PH, 203). #DnD https://t.co/Rvbb93xFD7
— Jeremy Crawford (@JeremyECrawford) January 5, 2016