Destroy trees with a skill

[smileyguyx]

I created a skill and i want it to destroy trees. Its an Aoe skill based off Crushing Wave and ive ticked the TREE option under Stats-Targets Allowed but when i test it the trees stay standing

 

[johnnymra]

Unless you want it to be based on Flame Strike which would be the easiest way to do it... i recommend 2 things:
1) Try making a spell based on Shockwave (not crushing wave) and see if by ticking 'trees' it destroys them.
2) If the first idea doesn't work... make a trigger that will pick all trees on the distance between the caster and the final point of the wave spell and kill all picked trees.