Freedom of Movement

You touch a willing creature. For the duration of the spell, the target’s movement is unaffected by difficult terrain, and spells and other magical effects can neither reduce the target’s speed nor cause it to become paralyzed or restrained.

The target can also spend 5 feet of movement to automatically escape from nonmagical restraints, such as manacles or a creature that has it grappled. Finally, being underwater imposes no penalty on the target’s movement or attacks.