Wall of Ice

Evocation [Cold]
Level: Sor/Wiz 4
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Effect: Ice wall whose area consists of up to seven 5’ squares (S)
Duration: 1 min./level
Saving Throw: See text
Spell Resistance: No
Spell Points: 7

You conjure a solid block of ice.

This spell creates a wall of ice that merges into adjoining surfaces. A wall of ice is 1 inch thick per caster level and composed of up to seven 5-foot squares, which must join one another. You can double the wall’s area by halving its thickness. The wall cannot be conjured so that it occupies the same space as a creature or another object.

You can create a wall of ice in almost any shape you desire. The wall created need not be vertical, nor rest upon any firm foundation; however, it must merge with and be solidly supported by existing stone. It can be used to bridge a chasm, for instance, or as a ramp. For this use, if the span is more than 20 feet, the wall must be arched and buttressed. This requirement reduces the spell’s area by half. The wall can be crudely shaped to allow crenellations, battlements, and so forth by likewise reducing the area.

Walking along the vertical surface of a wall of ice requires a DC 10 balance check. Climbing up a wall of ice follows normal rules for climbing, with a +5 modifier to the DC for the surface being slippery.

Like any other solid wall, this one can be destroyed by a disintegrate spell or by normal means such as breaking and chipping. Each 5-foot square of wall has 3 hit points per inch of thickness. Its hardness is 0. Creatures can hit the wall automatically. A section of wall whose hit points drop to 0 is breached. If a creature tries to break through the wall with raw strength rather than attacks, the DC for the Strength check is 22.

It is possible, but difficult, to trap mobile opponents within or under a wall of ice, provided the wall is shaped so it can hold the creatures. Creatures can avoid entrapment with successful Reflex saves.

The wall is crystal clear, and does not block line of sight (although spot checks taken through the wall take a -2 penalty). Noticing the wall is a DC 0 spot check. The wall does block line of effect.

Augment: For every additional spell point you spend, you get an additional 5’ square of wall you can place, and the strength check DC required to burst through it increases by 1.