Giant, Eldritch (CR 15)
Huge Giant
Alignment: Usually neutral evil
Initiative: +1 (Dex); Senses: low-light vision, Spot +21, and listen +21
AC: 32 (-2 size, +1 Dex, +13 natural, +8 full plate, +2 heavy steel shield), touch 9, flat-footed 31
Hit Dice: 25d8+255 (337 hp)
Fort +23, Ref +9, Will +19
Speed: 50 ft. (35 ft. in full plate armor)
Space: 15 ft./15 ft.
Base Attack +18; Grapple +42
Attack: Bastard sword +33 melee
Full Attack: Bastard sword +33/+28/+23/+18 melee
Damage: Bastard Sword 3d8+17/19-20
Special Attacks: Spell-like abilities
Abilities: Str 42, Dex 12, Con 28, Int 18, Wis 16, Cha 12
Special Qualities: Eldritch mastery, natural willpower
Feats: Cleave; Empower Spell-like Ability (magic missile); Exotic Weapon Proficiency (bastard sword); Great Cleave; Iron Will; Power Attack; Quicken Spell-Like Ability (greater dispel magic); Quicken Spell-Like Ability (dimension door); Weapon Focus (bastard sword)
Skills: Concentration +37, Diplomacy +3, Knowledge (arcana) +32, Knowledge (religion) +14, Knowledge (the planes) +14, Sense Motive +31, Spellcraft +34, Spot +21, and listen +21
Advancement: By character class
Climate/Terrain: Temperate mountains
Organization: Solitary or family (2-4 plus 35% noncombatants plus 1 wizard or cleric of 7th-10th level plus 1-2 greater earth elementals)
Treasure/Possessions: Standard coins; double goods; standard items
Source:
Monster Manual III
This giant resembles a well-formed human of enormous proportions. Its skin is tinged with a faint purple hue, and strange arcane symbols are tattooed onto nearly every inch of its flesh. It has light hair and eyes that seem to change color from blue to green to violet.
Eldritch giants are powerful scions of arcane lore. Ancient creatures fallen from what was once great power, eldritch giants spend countless years seeking our fragments of arcane knowledge. Although they are selfish and cruel, eldritch giants are smart enough to bargain fairly when they must and perceptive enough to know that open conflict distracts them from their studies.
Eldritch giants hate storm giants, although they are typically too involved in their pursuit of magical power to bother with fighting other creatures.
An adult eldritch giant is 25 feet tall and weighs about 13,000 pounds. Eldritch giants have incredible life spans and can live to be more than 3,000 years old.
Eldritch giants speak Abyssal, Common, Giant, and Terran.
Combat
An eldritch giant uses its spell-like abilities to strip opponents of their magical enhancements before entering melee combat. Although its size forces it to fight in relatively open environments, an eldritch giant's ability to use dimension door makes it capable of devastating hit-and-run tactics.
Spell-like Abilities: At will - detect magic, greater dispel magic, magic missile; 3/day - dimension door, globe of invulnerability. Caster level 20th.
Eldritch Mastery (Su): An eldritch giant has an extensive familiarity with and an intuitive grasp of arcane magic. It can use spell completion items (such as scrolls) as if it had the wizard's class spell list and were of the appropriate level to cast the spell. It can use spell trigger items (such as wands and staffs) as if it had the wizard's class spell list.
Natural Willpower (Ex): Unlike most giants, eldritch giants have a strong innate resistance to mental compulsion, illusion magic, and the like. Eldritch giants have a +6 racial bonus on Will saves.
Tactics Round-by-Round
An eldritch giant is most effective as a melee combatant, but it benefits greatly from spending a few rounds using its spell-like abilities to strip away the magic effects of its foes.
Prior to Combat: Scout foes with detect magic and activate globe of invulnerability.
Round 1: Use a quickened greater dispel magic on the foe with the most magical auras and charge the nearest foe. If unable to close, instead use an empowered magic missile followed by a quickened dimension door to get close to a spellcasting opponent.
Round 2: Continue melee combat, using quickened greater dispel magic to strip foes of their magical enhancements.
Round 3: If no foes are within melee reach, use empowered magic missile or dimension door to attack elusive opponents.
Round 4: If the foes are still mounting a credible threat, retreat using dimension door. Otherwise, alternate intelligent use of spells with full attacks.
Eldritch Giant Society
Eldritch giants dwell in isolated mountaintop towers or in deep caverns near wellsprings of arcane power. They are greatly interested in arcane magic, and they spend much of their time researching spells, searching for lost items of power, or crafting magic items of their own creation. Only a few eldritch giants typically dwell in the same place, drawn together by shared interest in specialized or esoteric knowledge about one facet of arcane magic. Groups of eldritch giants rarely live close to others of their kind, driven to remote regions to look for fragments of lost lore or for other strange purposes. On rare occasions, eldritch giants will seek out civilized lands in order to buy large quantities of raw materials such as paper, ink, and the rare materials used to create magic items.