Fireball is a Destruction spell and is Adept level.
Fireball is a spell that projects balls of fire at enemies. Fireball's distance extends far beyond other fire - related spells, such as Flames, and can be used to target enemies from even very long distances. Fireball deals 50 damage in a 15-foot radius of the blast zone, however, it does drain Magicka hastily so missing your desired target can bear consequences.
Fireball costs 100 magicka on cast.