Speigliai [Advanced Dire Porcupines]
Okay, so I was browsing through some of the old Homebrewed threads and found the Dire Porcupine. I thought it could make a cool modified creature, so I did so.

I had to modify it a little bit because this was a 3.0 version, but hey, it was pretty easy, so it's all good.
Technically, Insectoid Creatures are not allowed on Animals, but I liked it better than Arachnoid and liked the idea of multiple legs, so I added it on anyway. If you wanted, you could give it two claw attacks, assuming it could stand on the hind four feet, if you really wanted to, but this time, I didn't. Wouldn't be hard though.
I modified the Bone Creature template. Normally it's supposed to change the AC to like +3, but I felt that totally weakened this creature, and I'm not even sure if Bone Creature is technically allowed on anything not Humanoid. You should know me by now that I like Intelligent things, both Undead and even Golems.
Woodling version. Only thing different is that I added a higher Intelligence, but I explained that, so it should all be good.
Description
The Speigliai is a fighting machine, designed this way using selective breeding, growth methods, and, of course, Arcane Magic. There are three kinds of Speigliai. The first is used as siege creatures and guardians. They by themselves are rare, used mainly used by a individuals and a secret sect of people hiding in an anti-Wizard nation who are constantly experimenting on things. It is said that they have sold the secrets on how to breed these and even several samples of the Speigliai to other groups of people.
One of these other groups is the Elves. They have decided that they need to protect their forest and view the Speigliai as a means to do that against the lumberers and others who would harm their forests. They have taken the Speigliai one step further, making them more like the forests they are designed to protect. They have bred intelligence into the Speigliai and their relation has become more of an alliance than the Elves purely ruling over the Speigliai. The Speigliai have come to realize that they are as much of the forests now as any other forest-dwelling creature and that all within the forest must be protected. The Elves are proud of their 'creations' though some become close to the Speigliai and view them as a sort of child.
Several individuals have taken these creatures and turned them into Undead versions of themselves. These individuals are, of course, Necromancers and other that deal with the dead. The Undead threat is growing and these are almost perfect siege creatures. They can climb over walls and sense creatures coming from any direction. It is thought that some of the Undead underground are working on trying to create versions that can burrow underground, which would increase their strength dramatically. These Undead Speigliai still have a minor touch of Intelligence to them, but no more than their living versions.
Appearance
Living Speigliai are six-legged porcupines that are larger and much more fiercer than their normal 'cousins.' Their backs are covered with sharp, deadly spines and their maws filled with sharp fangs. Undead Speigliai are similar in appearance, but their bones are leaner and their eyes have a hint of rage within them. Their lips are almost always found curled into angry snarls. Forest Speigliai have bodies similar to that of trees and their bodies change depending on the season.
Speigliai
Insectile Dire Porcupine Dreadnaught
Large Aberration
Hit Dice: 8d8+64 (128 hp)
Initiative: +4
Speed: 30 ft, Climb 30 ft.
AC: 27 (-1 size, +4 Dex, +14 natural)
BA/Grapple: +6/+18
Attack: Bite +13 melee (1d6+8)
Full Attack: Bite +13 melee (1d6+8) and 1d6 quills +11 melee (1d8+4)
Face/Reach: 10 ft./5 ft.
Special Attacks: Felling Strike, Punishing Strike [+1/+8], Quills, Rapid Strike
Special Qualities: Darkvision 60 ft, DR 8/magic, Immunities, Resistance to Electricity and Fire 10, Scent, SR 18, Tremorsense 60 ft, Wide Vision
Saves: Fort +10, Ref +6, Will +8
Abilities: Str 26, Dex 18, Con 26, Int 2, Wis 14, Cha 13
Skills: Listen +13, Spot +14
Feats: Alertness, Endurance [Bonus], Improved Natural Attack [Quills], Multiattack
Environment: Temperate, warm, and cold forest, plains, and hills
Organization: Solitary or pack (2-5)
Challenge Rating: 8
Treasure: None
Advancement: 4-7 HD (Medium-size); 8-9 HD (Large)
Combat
Dire porcupines are passive until threatened. When faced with possible combat, the dire porcupine raises the quills on its body, spins around smashing an opponent with its quill-covered tail as it does. Dire porcupines can bite an opponent, but rarely do. If it does bite an opponent, 1d4 quills break off from its body and lodge in the opponent’s body (see text below).
Quills (Ex): When the Speigliai strikes with its tail, it dislodges 1d6 quills that automatically break off and lodge in the opponent’s flesh. A lodged quill imposes a –1 circumstance penalty to attacks, saves, and checks. Each 1 minute thereafter the quill moves deeper into the opponent’s flesh dealing 1d2 additional points of damage. Removing the quill takes 1 full round and deals 1d6 additional points of damage. If the quill has been embedded for more than 10 rounds, a Strength check at DC 10 is needed to remove the quill. For every minute after that, the DC to remove a lodged quill increases by +1.
An unarmed or touch attack against a dire porcupine causes 1d4 quills to break off and lodge in the attacker.
Skills: Speigliai receive a +4 racial bonus to Listen checks.
Wide Vision (Ex): Because of its multiple eyes and wide angle of vision, a Speigliai has a +4 racial bonus on Spot checks and cannot be flanked.
Felling Strike (Ex): Once per day, when a Speigliai scores a successful critical hit, it can elect to make a felling strike by rolling again. If the result of this third roll would hit the target, the target takes the full damage from the critical hit as normal but must also make a Fortitude saving throw (DC 10 + damage dealt) or die.
Punishing Strike (Ex): Once per day, a Speigliai may make a mighty attack against any one opponent, adding its Charisma bonus (positive only) as a bonus on the attack roll and its Hit Dice total as a bonus on the damage roll. Use of this ability must be declared before making the attack. If the attack misses, that punishing strike attempt is wasted.
Rapid Strike (Sp): Twice per day, a Speigliai may grant itself the effects of a haste spell (self only). Caster level 8.
Immunities (Ex): Speigliais are immune to disease, poison, paralysis, stunning, and all mind-influencing spells and effects.
Undead Speigliai
Insectile Dire Porcupine Dreadnaught Bone Creature
Large Aberration
Hit Dice: 8d12 (96 hp)
Initiative: +6
Speed: 30 ft, Climb 30 ft.
AC: 29 (-1 size, +6 Dex, +14 natural)
BA/Grapple: +6/+18
Attack: Bite +13 melee (1d6+8)
Full Attack: Bite +13 melee (1d6+8) and 1d6 quills +11 melee (1d8+4)
Face/Reach: 10 ft./5 ft.
Special Attacks: Felling Strike, Punishing Strike [+1/+8], Quills, Rapid Strike
Special Qualities: Darkvision 60 ft, DR 8/magic and 5/Bludgeoning, Immunities, Resistance to Electricity and Fire 10, Scent, SR 18, Tremorsense 60 ft, Undead Qualities, Wide Vision
Alignment: Always evil
Saves: Fort +2, Ref +8, Will +8
Abilities: Str 26, Dex 22, Con -, Int 2, Wis 14, Cha 13
Skills: Listen +13, Spot +14
Feats: Alertness, Endurance [Bonus], Improved Natural Attack [Quills], Multiattack
Environment: Any
Organization: Solitary
Challenge Rating: 9
Treasure: None
Advancement: 4-7 HD (Medium-size); 8-9 HD (Large)
Immunities (Ex): Immune to Cold.
Speigliai of Nature
Woodling Insectile Dire Porcupine Dreadnaught
Large Aberration
Hit Dice: 8d8+64 (128 hp)
Initiative: +4
Speed: 30 ft, Climb 30 ft.
AC: 34 (-1 size, +4 Dex, +21 natural)
BA/Grapple: +6/+18
Attack: Bite +13 melee (1d6+8)
Full Attack: Bite +13 melee (1d6+8) and 1d6 quills +11 melee (1d8+4)
Face/Reach: 10 ft./5 ft.
Special Attacks: Felling Strike, Punishing Strike [+1/+8], Quills, Rapid Strike, Spell-Like Abilities
Special Qualities: Darkvision 60 ft, DR 8/magic and 5/slashing, Immunities, low-light vision, Plant Traits, Resistance to Electricity and Fire 10, Scent, Skill Bonuses, SR 18, Tremorsense 60 ft, Vulnerability to Fire, Wide Vision
Alignment: Always neutral
Saves: Fort +10, Ref +6, Will +8
Abilities: Str 26, Dex 18, Con 26, Int 8, Wis 14, Cha 13
Skills: Listen +13, Spot +14
Feats: Alertness, Endurance [Bonus], Improved Natural Attack [Quills], Multiattack
Environment: Temperate, warm, and cold forest
Organization: Solitary or pack (2-5)
Challenge Rating: 10
Treasure: None
Advancement: 4-7 HD (Medium-size); 8-9 HD (Large)
Spell-Like Abilities: Entangle 1/day, Summon nature's ally II 1/day, Speak with plants 3/day, Summon nature's ally IV 1/day. Caster Level 8; DC 11 + spell level.
Skill Bonuses (Ex): A Speigliai's skin and hair resemble bark and leaves. Every part of the creature has a distinctly plantlike look that changes with the seasons. It is light green in early spring, darkening during the summer. In autumn, it turns yellow, orange, or red like a deciduous leaf. In the winter, it is a dry brown. A Speigliai has a +4 bonus on Hide checks and Move Silently checks in aboveground natural environments.
Speigliai
Dire Porcupine: Dire Porcupine
Dreadnaught Tempalte: Book of Templates [Silverthorne Games]
Insectile Template: Savage Species
Undead Speigliai
Bone Creature Template [Modified]: Book of Vile Darkness
Dire Porcupine: Dire Porcupine
Dreadnaught Tempalte: Book of Templates [Silverthorne Games]
Insectile Template: Savage Species
Forest Speigliai
Dire Porcupine: Dire Porcupine
Dreadnaught Tempalte: Book of Templates [Silverthorne Games]
Insectile Template: Savage Species
Woodling Template: Monster Manual III