Before Solar 3.0 Khepri's horn was able to spawn sunspots on kills, but it no longer does so. Please allow this exotic to keep this interaction with Sol Invictus and have it's damage boosted by Roaring Flames as well. If it's possible Khepri's Horn should be able to scorch enemies for 50 stacks on each wave, in exchange for this guaranteed ignition the cooldown of barricade could be increased as Ember of Singeing with scorching weapons will increase this exotic's popularity. Thank you for your time. :)