Best 5th-level spell.

The damage of spells depends on the spellcaster's magic power, whether the hero possesses magic of that element, and the presence of spheres that add 50% damage.

Of course, this refers to having the secondary skill "Elemental Magic." The secondary skill "Sorcery" also has an effect (up to +15% for any developed hero, up to +96% for a hero who has fully developed the "Sorcery" skill - for example, Sandro).