In order to cast a single target spell, with precision, one has to stop, specifically point at the target unit and cast the spell. So protecting/buffing or debuffing important units in the enemy's armies is essential to the sucess of an attack/defense. This is mostly because most armies consist of a diversified unit composition which single our specific key units, that pretty much make or break the game. The idea behind a single target spell is that using action time to depict a certain key unit inside your or your enemy's composition and affect it in a certain way, should bend the game into your favor. #1 Single target spells are a very important part of any RTS and one of the center pillars of what we like to call 'micro'.
