@JeremyECrawford For aquatic combat purposes, is a grappled creature considered to have a swim speed (equal to 0) or to have no swim speed?
— Keith Ammann (@geeniusatwrok) August 8, 2017
The grappled condition reduces any speed you have to 0. The condition doesn't confer or remove speeds. #DnD https://t.co/AHzOBUOHUy
— Jeremy Crawford (@JeremyECrawford) August 8, 2017