KMST 1.2.409 - Thief/Pirate Revamp

New pierce is more stable (3 hit of 520%) that can hit up to 9 monsters going up to 3 hits of 2235% to the 9th monster

Energy Blast is more stable because it hits a lower % per hit (475%), and more hits per attack (4). The fact that Pierce does more damage as it hits more monsters means its less stable than a skill that doesn't.