(Dinosaur) Shunosaurus

A massive sauropod uses its massive tail to knock over a tree, and you see what looks like a club on its end. The creature takes a few leisurely nibbles on the branches as it waves its tail back and forth behind it to keep any predators around wary.

Originally Posted by Darknecromancer of the Wizards Community forums.  
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Shunosaurus is, in many ways, a normal plodding sauropod that measures some 30 ft in length and eats shocking amounts of plant mater to keep its bulk. The one distinguishing feature of this creature, outside of its relative smallness compared to other sauropod, is that it has a spiked club at the end of its tail, not unlike an ankylosaur.

Shunosaurus
Huge animal
Hit Dice	16d8+128 (200 hp)
Initiative	-1 (-1 Dexterity)
Speed	20 ft. (4 squares)
Armor Class	17 (-2 size, -1 Dexterity, +10 natural), touch 7, flat-footed 17
Base Attack/Grapple	+12/+29
Attack	Tail slap +20 melee (3d6 +9)
Full Attack	Tail slap +20 melee (3d6 +9)
Space/Reach	15 ft./10 ft.
Special Attacks	Trample
Special Qualities	Darkvision 60ft, Low-Light Vision, Scent
Saves	Fort +18, Ref +9, Will +7
Abilities	Strength 29, Dexterity 9, Constitution 27, Intelligence 2, Wisdom 15, Charisma 14
Skills	Hide -9, Listen +12, Spot +11
Feats	Cleave, Great Cleave, Improved Natural Armor, Power Attack, Weapon Focus (Tail slap)
Environment	Any land
Organization	Solitary, Pair, or Pod (5-20)
Challenge Rating	10
Treasure	None
Alignment	Always neutral
Advancement	17-32 HD (Huge); 33-48 HD (Gargantuan)
Level Adjustment	–

Combat  

When threatened, a Shunosaurus will turns its deadly tail to its enemies and swing away at them.  

Trample (Ex)

As a full-round action, a Shunosaurus can move up to twice its speed and literally run over any opponents at least one size category smaller than itself. The Shunosaurus merely has to move over the opponents in its path; any creature whose space is completely covered by the trampling creature’s space is subject to the trample attack.

A trample attack deals bludgeoning damage (3d6 +13). Trampled opponents can attempt attacks of opportunity, but these take a -4 penalty. If they do not make attacks of opportunity, trampled opponents can attempt Reflex saves to take half damage. The save DC against a creature’s trample attack is 27. A trampling creature can only deal trampling damage to each target once per round, no matter how many times its movement takes it over a target creature.