Looks like a bug, or am I missing something? Spirit of the blade shouldn't sap so much health. It was triggered almost a day before this fight.

706(75%hp) 421(49%m) 81%mv (24900|civilized|indoor) 1 PM
Tremblefist's slice misses you.
Your cleansing fist MUTILATES Tremblefist!
Your cleansing fist EVISCERATES Tremblefist!
Your lightning strike maims Tremblefist!
Your lightning strike decimates Tremblefist!
Your lightning strike MUTILATES Tremblefist!
Your cleansing fist MASSACRES Tremblefist!
Your cleansing fist misses Tremblefist.
Your necklace of prayer beads shines a bright white, and a ray of light strikes your enemy!
Your dispel evil decimates Tremblefist!
Your perfect focus on combat is replaced again by calm.
---- INTENSIFY DOWN ----
Tremblefist is convulsing on the ground.

706(75%hp) 420(49%m) 81%mv (24900|civilized|indoor) 1 PM inten
You clear your mind of all thoughts beyond the struggle at hand.
---- INTENSIFY UP ----
Tremblefist is convulsing on the ground.

706(75%hp) 400(47%m) 81%mv (24900|civilized|indoor) 1 PM
Tremblefist narrows his eyes and glares in your direction.
Darkness begins to overtake you, but you will the sensation back!
You foresee Tremblefist's slice and move yourself to safety.
You foresee Tremblefist's slice and move yourself to safety.
Your cleansing fist devastates Tremblefist!
Your cleansing fist maims Tremblefist!
Your cleansing fist MUTILATES Tremblefist!
Your lightning strike maims Tremblefist!
Your lightning strike EVISCERATES Tremblefist!
Your lightning strike DISMEMBERS Tremblefist!
Your cleansing fist EVISCERATES Tremblefist!
You receive 0 experience points (40% bonus).
You feel a shudder in your Cabal Power!

0(0%hp) 399(47%m) 81%mv (24900|civilized|indoor) 1 PM aff

Your perfect focus on combat is replaced again by calm.
---- INTENSIFY DOWN ----

0(0%hp) 399(47%m) 81%mv (24900|civilized|indoor) 1 PM You are affected by:
Commune: 'bless' modifies save vs spell by -12 for 54 hours.
Commune: 'bless' modifies hit roll by 6 for 54 hours.
Commune: 'crusade' modifies save vs spell by -12 for 54 hours.
Commune: 'crusade' modifies hit roll by 6 for 54 hours.
Physical effect: 'cabal raid' modifies morale by 5 for 36 hours.
Commune: 'detect invis' for 36 hours.
Commune: 'righteousness' for 26 hours.
Commune: 'protection from evil' for 23 hours.
Skill: 'conviction' modifies negative resistance by 4 for 22 hours.
Commune: 'essence of fortitude' for 15 hours.
Skill: 'anticipate' vs. bash modifies wisdom by 2 for 8 hours.
Skill: 'poison' modifies strength by -5 for 8 hours.
Commune: 'transcend' modifies damage roll by 5 for 7 hours.
Commune: 'fervor' modifies save vs mental by -16 for 4 hours.
Commune: 'fervor' modifies morale by 20 for 4 hours.
Skill: 'spirit of the blade' for 3 hours.
Commune: 'sanctuary' for 2 hours.
Skill: 'avoid' for -1 hours.

0(0%hp) 399(47%m) 81%mv (24900|civilized|indoor) 1 PM commune heal
You are too stunned to do that.

0(0%hp) 399(47%m) 81%mv (24900|civilized|indoor) 1 PM
You shiver and suffer.
Your poison mauls you.
You have been KILLED!!

You have died, but the Carrion Fields are not finished with you yet!
Your soul is returned to the realms in the form of a ghost.
You will return to your corporeal state in a short while.
Be careful, for even a ghost should fear some dangers!

1(0%hp) 1(0%m) 86%mv (24900|PROTECTED civilized|indoor) 2 PM

The cost sometimes hurts.