Since apparently the Primalist is getting some love this patch, I figured I would give an idea for a skill.
The Beastmaster character in Dota 2 has has an ability called Wild Axes. This is where he throws two axes out that cross over/under one another before boomeranging back to him. Each axe can hit an enemy once.
What makes this type of skill so fun is that if you hit your target just at the end of the axes reach (just as the axes are crossing one another) both axes hit the same target. Figured Id throw it out there as it is a very very fun skill.