Shaking the tree of Sephirot (Neo)

Achievement unlocked! "Shaking the tree of Sephirot"!

You've taken out a ranked member of the Cabal! That's... well. Good luck.

+10,000XP

+1 skill level [23 hours, 58 minutes, 37 seconds remaining]

Reference
Unlocked in Chapter 156 "The Squeeze"