Gain Movement Speed while near allied towers and turrets deployed by Heimerdinger.
Heimerdinger lays down a rapid-fire cannon turret equipped with a secondary pass-through beam attack (turrets deal half damage to towers).
Heimerdinger fires long-range rockets that converge on his cursor.
Heimerdinger lobs a grenade at a location, dealing damage to enemy units, as well as stunning anyone directly hit and slowing surrounding units.
Heimerdinger invents an upgrade, causing his next spell to have increased effects.