Carrier current

Carrier current was a common spell used by wizards in Serôs.

Effects
This spell affected the currents in water within a 30 foot (9 meter) radius. Creatures within this area moved at a significantly increased rate. If the increased speed was too strong for the creature, they were unable to avoid obstacles in their path. IF a creature swam outside the spell's area of effect, they were able to once again swim at their normal speed. For the spell to be cast, the caster had to be the lead swimmer, and when the caster stopped swimming, the spell expired. The number of creatures that the caster could affect was based on their skill level.

Components
In addition to verbal and somatic components, the spell required a material component, a drop of blood.