Reduce your damage taken by 75% while using Shoulder Bash.
Reduce the Cooldown of Kinetic Burst by 0.6-3s.
Gain 10-50% Lifesteal.
Reduce the Cooldown of Shoulder Bash by 0.8-4s.
Increase the Knockback distance of Shoulder Bash by 8-40%.
Increase the Knockback distance of Kinetic Burst by 8-40%.
Combine it with in game cooldown reduction..
Ya will be able to spam it per 3 seconds or less.. xD
Around 2 or 3 seconds if the ingame cooldown is maxed out. :D