[ajardoor]

Okay, then, here's a errata'd version (BTW, anything wrong with the reductions for backlash, Fright Checks and required materials?)

----
Enchant Army of Hell
Spell Effects: Greater Transform Body.
Inherent Modifiers: Altered Traits, increased ST, increased DX, DR and Terror (Always On).
Greater Effects: 1 (x3).

This horrid spell (said to be discovered or invented in medieval Japan) allows a bunch of fighting men to temporary become demonic parodies of themselves and gain gruesome combat prowess. It requires a katana that has been bathed in human blood for 24 hours to be wielded by the caster, who will suffer backlash in the form of -2 IQ penalty for a minute and may roll Will once per minute after that to recover. Both the caster and the subjects will suffer a Fright Check when this spell is casted (and if the rules for Stress and Derangement from GURPS Horror are being used, this is a Sanity-Blasting Fright Check).
The subjects within the area of effect (10 yards here) will, for the duration of the spell (10 minutes here), be transformed into twisted and powerful semi-demonic warriors, granting them +5 ST, +2 DX, DR 8 and the Terror (B93) advantage (on sight) with the Always On limitation.

Typical Casting: Area of Effect, 10 yards (8) + Duration, 10 minutes (1) + Altered Traits, +5 ST, +2 DX, Terror (Always On, -20%) and DR 8 (154) + Subject Weight, 300 lbs. (3) + Greater Transform Body (8). 522 energy (174x3).
Note: Non-resistable -2 IQ damage backlash to the caster (-10%), required materials of a katana bathed in human blood for 24 hours (-5%) and a non-resistable Fright Check (-30%) backlash for both the caster and the subjects makes for a total energy reduction of -45%, to 287 energy.