Alright, so I need to make and edit a few abilities for my hero units. To make my life easier, I'm trying to modify existing ones for any of the attack animation ones. I've run into a few snags on some of them, and others I have no idea how to accomplish. I was hoping someone would be willing to help me out and maybe teach me a thing or two about this.

Several abilities are buffs, those I can do no problem. Others are like blink and charge - simple, those are already made for me. My issue comes from most of the activated attacks.
One or two of them are area affect multiple projectile abilities. For now, I have used the hurricane missiles ability, and changed the targets it damages to ground, unfortunately the missiles still fly up into the air, how can I aim them down to the ground (if possible).

My next ones are things like charge or other area effect abilities, where enemy units are damaged and pushed back.

The last two are kind of similar, one is a mana shield type system, which I have seen a lot of people use triggers for, is there a way to do it in the data editor? The other one is reflecting melee damage, like a spiked carapace from the crypt lord in wc3.

Any help or tips would be greatly appreciated, thanks.