Bigby's Crushing Hand

Evocation [Force]
Level: Sor/Wiz 9, Strength 9
Components: V, S, M, F/DF

This spell functions like Bigby’s interposing hand, except that the hand can interpose itself, push, or crush one opponent that you select.
The crushing hand can grapple an opponent like Bigby’s grasping hand does. Its grapple bonus equals your caster level + your Intelligence, Wisdom, or Charisma modifier (for a wizard, cleric, or sorcerer, respectively), +12 for the hand’s Strength score (35), +4 for being Large. The hand deals 2d6+12 points of damage (lethal, not nonlethal) on each successful grapple check against an opponent.
The crushing hand can also interpose itself as Bigby’s interposing hand does, or it can bull rush an opponent as Bigby’s forceful hand does, but at a +18 bonus.
Directing the spell to a new target is a move action.
Clerics who cast this spell name it for their deities—St. Cuthbert’s crushing hand, for example.

Arcane Material Component: The shell of an egg.
Arcane Focus: A glove of snakeskin.

Source: Player's Handbook

Bigby's Interposing Hand

Evocation [Force]
Level: Sor/Wiz 5
Components: V, S, F
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Effect: 10-ft. hand
Duration: 1 round/level (D)
Saving Throw: None
Spell Resistance: Yes

Bigby’s Interposing hand creates a Large magic hand that appears between you and one opponent. This floating, disembodied hand then moves to remain between the two of you, regardless of where you move or how the opponent tries to get around it, providing cover (+4 AC) for you against that opponent. Nothing can fool the hand—it sticks with the selected opponent in spite of darkness, invisibility, polymorphing, or any other attempt at hiding or disguise. The hand does not pursue an opponent, however.
A Bigby’s hand is 10 feet long and about that wide with its fingers outstretched. It has as many hit points as you do when you’re undamaged, and its AC is 20 (–1 size, +11 natural). It takes damage as a normal creature, but most magical effects that don’t cause damage do not affect it. The hand never provokes attacks of opportunity from opponents. It cannot push through a wall of force or enter an antimagic field, but it suffers the full effect of a prismatic wall or prismatic sphere. The hand makes saving throws as its caster.
Disintegrate or a successful dispel magic destroys it.
Any creature weighing 2,000 pounds or less that tries to push past the hand is slowed to half its normal speed. The hand cannot reduce the speed of a creature weighing more than 2,000 pounds, but it still affects the creature’s attacks.
Directing the spell to a new target is a move action.
Focus: A soft glove.

Source: Player's Handbook

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