Tolbin's Toiling Trudge

The caster targets a number of creatures in range slowing their movement to a crawl regardless of actual terrain features or environment. The caster projects a 60 foot cone. All creatures in the cone must make a wisdom saving throw or have their base movement halved and lose the Dash ability. On a successful save they lose 5 feet of movement for that round. The effect lasts until dispelled or 6 hours has elapsed. For each 2 levels cast above 5th the duration doubles.