Unreal is the strongest prefix for Pew-matic Horn — +15% damage, +10% speed, +10% crit, +15% knockback (ranged only).
Pew-matic Horn deals 20 base damage, 15-tick use time. Use the DPS calculator to see expected damage per second with prefixes and crit applied.
Pew-matic Horn is a Ranged weapon, dealing 20 base damage. It scales with ranged armor and accessories.