Quick help.

[Koopa124]

Problem Solved.

 

[Jetherit]

You don't necesarily have to make a new unit for the mine. You will have to make a custom Explode ability, but you can use the Goblin Land Mine unit and just delete all the abilities and other stuff. Does that answer your question?

 

[Koopa124]

i need it so when u click the "explode" ability on the mine, it kills itself dealing damage in an explosion.

(the mine is aslo invisable.)

 

[Jetherit]

Ok, you want to make a new unit then. Make the model whatever you want. Give it invisibility, and whatever other stats you want on it. Now, make a shockwave spell that does nothing. Make a trigger that states:
Unit starts casting Shockwave
Create 1 Mine at [Target Point of Ability Being Cast]

Then to make the explode, make a spell that is say....Warstomp. Something that you click, and it casts. Make it do nothing also. Make a trigger for that too that does however much damage around the unit, and kills it. If you are going to make it able to damage allies too, then use the action Unit-Damage Area.
Otherwise, do a for group for all enemies around it, and do Unit-Damage Target for all of them.

 

[Koopa124]

well, i got everything done, it works and all (this was my way), but, when i go to build the mine, it says "Must target a gold mine" ....v_v

so i added a gold mine just to see wat it would do, and when he builds it, the gold mine dissapears, and theirs the mine.