Characteristics
Casting time: 7 rounds
Spell cost: 250
Spell level: 20
Spell category: abjuration
Affecting stats: wisdom
Offensive: No
Location: Anywhere
Target: livingtarget
Range: room
Components: VS
Alignment: Must be Good.
Description
This spell protects the target from various draining magics like mana drain, energy drain, life leech, and the like. The nature of the protection may be immunity and/or channeling damage back to the drainer. The spell also protects the target such spells as curse, forms of polymorph, petrification, calcification, gaseous form, and anything that might shrink or enlarge the target. It will also prevent the casting of such beneficial spells as chaos shape, hamfarir, animal form or various shape change powers of certain races. Both the caster and the target must be good aligned.
Notes
Impassibility is actually two spells in one: solidity and antidrain. One will wear off before the other and both spell effects must be gone before impassibility may be recast on the target.
The solidity effect seems to have a maximum duration of five minutes; the duration of the antidrain effect varies strongly, but is approximately ten minutes. Hence, this spell is usable as a replacement for antidrain, but requires a lot of care with timing if used for solidity.