Flamestrike

Flamestrike (Q) [Area of Effect]
Mana: 70
Cooldown: 7 seconds

After a short delay, deal 320 (+4% per level) damage in an area. Verdant Spheres increases the radius by 50%.

Kael'thas

Patch changes

•  (Patch April 12, 2016) Note: Range increased by 10%.; Damage increased from 213 (+4% per level) to 320 (+4% per level).; Flamestrike damage is no longer increased when empowered by Verdant Spheres.
•  (Patch March 29, 2016) Note: Damage reduced from 237 (+4% per level) to 213 (+4% per level); Damage (empowered by Verdant Spheres) reduced from 356 (+4% per level) to 320 (+4% per level).
•  (Patch August 18, 2015) Note: Flamestrike:Damage increased from 74 (+20 per level) to 80 (+22 per level).