Eldin’s Eldritch Itch

This spell causes a painful burning rash to appear on one creature you can see within range.  The target must succeed on a Constitution saving throw, or - on each successive round during this spell’s duration - it must move 10 feet in a random direction seeking cool water or other relief, provided the target can move and its speed is at least 10 feet.

Roll a d4 for the direction each round during this spell’s duration: 1, north; 2, south; 3, east; or 4, west. This movement doesn’t provoke opportunity attacks, and if the direction rolled is blocked, the target doesn’t move.  

The duration of the effect is 3 rounds or, if earlier, the next successful constitution save that the target makes against this spell’s effect.

The spell has no effect on rock gnomes.