Brachiosaurus
Colossal Animal
Hit Dice: 28d8+270 (396 hp)
Initiative: -2
Speed: 15ft (3 squares)
Armor Class: 10 (-8 size, -2 Dex, +10 natural), touch 0, flat-footed 10
Base Attack/Grapple: +21/+52
Attack: Claw +28 melee (4d6+15)
Full Attack: 2 claws +28 melee (4d6+15)
Space/Reach: 50ft/40ft
Special Attacks: Trample 10d8+22
Special Qualities: Low-light vision, scent
Saves: Fort +27, Ref +14, Will +13
Abilities: Str 40, Dex 7, Con 29, Int 1, Wis 14, Cha 12
Skills: Listen +15, Spot +27
Feats: Alertness, Diehard, Endurance, Great Fortitude, Iron Will, Skill Focus (Spot), Toughness (x3)
Environment: Warm and temperate forests and hills
Organization: Solitary, pair or pod (5-20)
Challenge Rating: 11
Treasure: None
Alignment: Always neutral
Advancement: 29-84 HD (Colossal)
Level Adjustment: -
This incredibly tall quadruped has a huge, almost erect neck, a short tail, a very broad chest, thin legs and a short head with a flat snout and a high crest.
Although the seismosaurus might be longer and heavier, the brachiosaurus is the tallest of all the dinosaurs.
Brachiosaurs are almost 90 feet long and nearly 50 feet tall. They are slow and clumsy by even the standards of the sauropods, but their long legs and neck allow it to reach the tallest branches. They are herd organisms, and because of their size have no natural enemies.
Combat
A brachiosaurus is most likely to use its front claws for uprooting trees, but when attacked by something large enough to concern it (usually a rival brachiosaur), it can use them to deadly effect. Against most dangers, it simply walks over them.
Trample (Ex): A brachiosaurus can literally run over any creatures in its way that are of Gargantuan or smaller size. Creatures trampled must make a Reflex save (DC 39 half) or take 10d8+22 damage. The save DC is Strength based.
May want to replace the claws with stamps (that also do slashing damage). May want to make it faster. May want to boost its natural AC.
