Your next basic attack against an enemy champion in each cardinal direction within 750 range additionally on-attack fires 5 missiles at the target that each deal 8 – 51 (based on level) (+ 14% bonus AD) physical damage, for a total of 40 – 255 (based on level) (+ 70% bonus AD) physical damage (5 second cooldown per direction). Missiles' damage is increased by 0% – 50% (based on distance travelled). Each missile can critically strike for (200% + 30%) damage and applies on-hit effects at 20% effectiveness.
This augment page for Fan The Hammer reflects public Arena Mayhem data for patch 26.19.
Graded against the other augments of its rarity, from all champions' games. The source publishes no per-champion results for augments.
See the Prismatic tier list