Large (Outsider (Evil, Extraplanar, Lawful)) CR 13
HP 147, hd14d8+84 AC 32 (?1 size, +5 Dex, +18 natural), touch 14, flat-fooded 27 Fort +15, Ref +14, Will +15 Speed 40 ft. (8 squares) Initiative +5 Spot , Listen
Standard attacks BAB +14, Grapple +24
Attacks
Full attack: Spear +20/+15/+10 melee (2d6+9/x3 plus slow) and bite +14 melee (2d6+3) and tail +14 melee (3d6+3 plus slow); or 2 claws +19 melee (1d10+6) and bite +14 melee (2d6+3) and tail +14 melee (3d6+3 plus slow)
Special Attacks/Qualities
Fear aura, slow, spell-like abilities, summon devil
Damage reduction 10/good, darkvision 60 ft., immunity to fire and poison, resistance to acid 10 and cold 10, regeneration 5, see in darkness, spell resistance 25, telepathy 100 ft.
Skills Bluff +22, Climb +23, Concentration +23, Diplomacy +9, Disguise +5 (+7 acting), Intimidate +24, Jump +27, Knowledge (any three) +23, Listen +25, Move Silently +22, Search +23, Sense Motive +23, Spellcraft +23, Spot +25, Survival +6 (+8 following tracks)
Feats Alertness, Cleave, Combat Reflexes, Power Attack, Weapon Focus (spear)
Str 23 Con 23 Dex 21 Int 22 Wis 22 Cha 20
Alignment Always lawful evil, Environment A lawful evil-aligned plane, Organisation Solitary, team (2?4), squad (6?10), or troupe (1?2 ice devils, 7?12 bearded devils, and 1?4 bone devils)

An ice devil is about 12 feet tall and weighs about 700 pounds.

An ice devil prefers to fight only when doing so serves its mission, but it never hesitates to attack when it deems a battle necessary?or likely to end in its victory.
An ice devil?s natural weapons, as well as any weapons it wields, are treated as evil-aligned and lawful-aligned for the purpose of overcoming damage reduction.
Fear Aura (Su): An ice devil can radiate a 10-foot-radius fear aura as a free action. A creature in the area must succeed on a DC 22 Will save or be affected as though by a fear spell (caster level 13th). A creature that successfully saves cannot be affected again by the same ice devil?s aura for 24 hours. Other devils are immune to the aura. The save DC is Charisma-based.
Slow (Su): A hit from an ice devil?s tail or spear induces numbing cold. The opponent must succeed on a DC 23 Fortutude save or be affected as though by a slow spell for 1d6 rounds. The save DC is Consitution-based.
Spell-Like Abilities: At will?cone of cold (DC 20), fly, ice storm (DC 19), greater teleport (self plus 50 pounds of objects only), persistent image (DC 20), unholy aura (DC 23), wall of ice (DC 19). Caster level 13th. The save DCs are Charisma-based.
Summon Devil (Sp): Once per day an ice devil can attempt to summon 2d10 lemures or 1d6 bearded devils, 2d4 bone devils with a 50% chance of success, or another ice devil with a 20% chance of success. This ability is the equivalent of a 4th-level spell.
Regeneration (Ex): An ice devil takes normal damage from good-aligned weapons and from spells or effects with the good descriptor.

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System Reference Document -> List of Creatures (SRD)