Conjuration and Summoning (House Gaius), Abjuration
Sphere
Reversible?
No
Range
0
Components
Verbal
Duration
1 turn/level
Casting Time
7
Area of Effect
10-ft. radius
Saving Throw
Special
Effects
This spell enables the wizard to conjure up an immobile, opaque globe of shimmering, multicolored light to surround him, giving protection from all forms of attack. The sphere flashes in all colors of the visible spectrum, seven of which have distinct powers and purposes. Any creature with fewer than 8 Hit Dice is blinded for 2d4 turns by the colors of the sphere. Only the spellcaster can pass in and out of the prismatic sphere without harm, though he can cast it over others to protect them. The sphere can be destroyed, color by color, in consecutive order, by various magical effects; however, the first must be brought down before the second can be affected, and so on. Any creature passing through the barrier receives the effect of every color still remaining. The following table shows the colors and effects of the prismatic sphere, as well as what will negate each globe.
Note that typically the upper hemisphere of the globe is visible, as the spellcaster is at the center of the sphere, so the lower half is usually hidden by the floor surface he is standing on.
Furthermore, a rod of cancellation or a Mordenkainen's disjunction spell will destroy a prismatic sphere (but an antimagic shell will fail to penetrate it). Otherwise, anything short of an artifact or relic entering the sphere is destroyed, and any creature is subject to the effects of every color still active--i.e., 70-140 points of damage plus death, petrification, insanity, and instantaneous transportation to another plane.
Prismatic Sphere Effects
Color Order Effect of Color Spell Negated By
Red 1st Stops nonmagical missiles--inflicts 20 points of damage,
save for half cone of cold
Orange 2nd Stops magical missiles--inflicts 40 points of damage,
save for half gust of wind
Yellow 3rd Stops poisons, gases, and petrification--inflicts 80 points
of damage, save for half disintegrate
Green 4th Stops breath weapons--save vs. poison or die;
survivors suffer 20 points of damage passwall
Blue 5th Stops location/detection and mental attacks--save vs.
petrification or turn to stone magic missile
Indigo 6th Stops magical spells--save vs. wand or go insane continual light
Violet 7th Force field protection--save vs. spell or be sent to
another plane dispel magic
