Don’t Fear the Reaper!(Zewes)

Achievement Unlocked: Don’t Fear the Reaper!

* guitar riff*

Come on baby, don’t fear the reaper! You should get some more HP so this doesn’t happen again.

Oh and some more armor.

Rewards: +2 END, 1 Rare Item

Reference
Unlocked in Chapter 14 "Training Montages Were Never This Painful"