The helpful way is to understand & learn the what & how of triggers (surely you know this already). Copy the triggers in the spell map into your map or you could just export them then import to your map. Copy also the placed unit in the spell map coz they are very important & they are selected units in the action (i think almost all of the spells here has selected units). Now export the spell data or the object data then import it to your map. If you understand the triggers in the first place, then you could remake that spell into your map. If it is written in JASS then dont know how to read, well you & i have the same problem.