I've seen this a few times now, and wanted to post about it, in case it's something going wonky with something in the background...

--
>1630
[voodoo]>incant 1630
You murmur softly under your breath, preparing the Judgment spell...
You gesture at a human mugger.
You briefly close your eyes, and a cloud of leaves gently rain down upon you. A faint golden light builds up and emanates from your hand before it takes the shape of an ethereal falarica!
A half-elven brigand is forced out of hiding.
W_GS4-COASE
CS: +402 - TD: +291 + CvA: -10 + d100: +27 == +128
Warding failed!
The half-elven brigand is stricken for 31 points of damage!
... 15 points of damage!
Large gash to the right arm, several muscles torn.
The half-elven brigand is stunned!
The half-elven brigand is driven to his knees!
A barrage of viridian essence sprays from the blade of the ethereal falarica, striking a human robber!
CS: +402 - TD: +294 + CvA: -10 + d100: +2 == +100
Warded off!
A barrage of viridian essence sprays from the blade of the ethereal falarica, striking a human mugger!
CS: +402 - TD: +279 + CvA: -10 + d100: +30 == +143
Warding failed!
The human mugger is stricken for 30 points of damage!
... 20 points of damage!
Whoosh! Several ribs driven into lungs.
The human mugger is driven to his knees!
A barrage of viridian essence sprays from the blade of the ethereal falarica, striking an urgh!
CS: +402 - TD: +12 + CvA: +25 + d100: +57 == +472
Warding failed!
The urgh is stricken for 223 points of damage!
The urgh collapses to the ground, emits a final squeal, and dies.

The ethereal falarica slowly decays and falls to the ground as a mass of dead leaves.
--

The bolded line is the line of interest, and it only happens with 1630, when it's pulling a thing out of hiding (only on bandits, in the instances I've encountered it).

~Cylnthia Kythnis Ardenai
~Paragon of Kuon
~Rose Guardian, House Sylvanfair