Greenbound Troll (CR 7)

Large Plant (Augmented Giant)
Alignment: Usually chaotic evil
Initiative: +3 (Dex); Senses: darkvision 90 ft., low-light vision, scent, tremorsense 60 ft., Listen +5, and Spot +6
Languages: Any language known before transformation.

AC: 23 (-1 size, +3 Dex, +11 natural), touch 10, flat-footed 20
Hit Dice: 6d8+48 (75 hp); DR: 10/magic and slashing
Fort +13, Ref +5, Will +3
Speed: 30 ft.
Space: 10 ft./10 ft.
Base Attack +4; Grapple +21
Attack: Claw +12 melee
Full Attack: 2 claws +12 melee and bite +7 melee or slam +12 melee and bite +7 melee
Damage: Claw 1d6+9 and bite 1d6+4, slam 1d6+9 and bite 1d4+4
Special Attacks/Actions: Rend 2d6+13, spell-like abilities
Abilities: Str 29, Dex 16, Con 27, Int 6, Wis 9, Cha 10
Special Qualities: fast healing 3, grapple bonus, plant traits, regeneration 5, resistance to cold 10 and electricity 10
Feats: Alertness; Iron Will; Track
Skills: Hide -1 (+15 in forested areas*), Listen +5, Move Silently +3 (+19 in forested areas), and Spot +6
Advancement: By character class
Climate/Terrain: Any forests
Organization: Solitary, pair, or gang (3-4)
Treasure/Possessions: Standard

Source: Lost Empires of Faerûn

Rend (Ex): If a greenbound troll hits with both claw attacks, it latches onto the opponent's body and tears the flesh. This attack automatically deals an additional 2d6+13 points of damage.

Regeneration (Ex): Fire and acid deal normal damage to a greenbound troll. If it loses a limb or body part, the lost portion regrows in 3d6 minutes. The creature can reattach the severed member instantly by holding it to the stump.

Greenbound trolls fight with no fear of death. They often fill an area with entangling plants and vines before jumping into physical combat.

Augmented Subtype

A creature receives this subtype whenever something happens to change its original type. Some creatures (those with an inherited template) are born with this subtype; others acquire it when they take on an acquired template. The augmented subtype is always paired with the creature's original type. For example, a wizard's raven familiar is a magical beast (augmented animal). A creature with the augmented subtype usually has the traits of its current type, but the features of its original type. For example, a wizard's raven familiar has an animal's features and the traits of a magical beast.