Song of Flame's grenade is not boosted by Spirit of the Star-Eater's Feast of Light buff. In the video, the snap's damage does scale - with x6, each snap projectile does 12-13k, and without it, each snap projectile does 7-8k. However, the grenade damage is always 41k - which means Star-Eaters doesn't work on it. This seems unintended as the grenade is very much also part of the super. Edit: Actually, I misunderstood what was happening. It isn't that the grenade isn't buffed, but that the bonus damage buff ends before the super ends. Link: [url]https://youtu.be/T4gOFsmIBg4[/url]