Infernal Ability Question

This is a quick question, and so far in my tests I've been unable to achieve what I want.

With the ability "Infernal" (You know, Dreadlord level 6), is there any way to make it not blow up trees?
I want to use the ability as is, just... Without it breaking trees.

I can't seem to figure it out on my own, so I'm guessing it will always break shit.
But no harm in asking anyways.

just make doodads invulnarable in boulder drop moment, no other way

Figures.
I was hoping to avoid that, but oh well.
Works for me, thanks.

Ultimately, i'd suggest you're better off having a dummy unit cast a modded war stomp rather than making the doodads invulnerable, as there's a chance you could have issues with other effects which should kill the trees.

You could also possibly do something with Cluster Rockets.

What pheonix said. Make the Infernal spell do 0 damage and make a dummy unit with war stomp at the target location.

Setting the Data - Damage to 0 wont do any difference. Trees will still be blown up. you'll have to use another ability as base.

Yeah, the Infernal ability doesn't come in there at all, it just looks like it does.