Wei Yu's Protective Bubble (3.5e Spell)

''Wei Yu was a master of both offense and defense, but she always found spell to polarized toward one or another. She therefore created a powerful defensive spell with deceptively good offensive capabilities.''

This versatile spell create a bubble of water, protecting all inside. The bubble itself is a perimeter shield with 10 hit point per caster level, an AC of 20 and resistance to fire 20. However the bubble is filled with water, creating inside the bubbles are for all intent and purpose underwater and are limited as such.

When the shield is destroyed, the water inside pour harmlessly around.

Wei Yu's Constricting Bubble: If channeled (see below, this spell can be used offensively. The shield is reversed, instead protecting the outside world from creature trapped in the bubble. Additionally the water inside the bubble is filled with powerful currents and pressure, at the beginning of each trapped creature's turn it must make a fort save or be immobilized until the beginning of it next turn. The only way of escaping the bubble is to break the shield, causing the bubble to 'pop'.

Channel: Wei Yu's Protective Bubble can be channeled in the following ways.
 * Lesser: See Wei Yu's Constricting Bubble above.
 * Greater: Does not expend the spell slot used to prepare the spell/spell per day. Only applies if the Wei Yu's Protective Bubble was cast with a 4th level spell-slot/spell per day.