Haven't posted in awhile, so I have these guys, who will be replacing trolls in my campaigns from here on out.
The Half-Human template is the one from AEG monsters (not out of preference but I have most of it memorized

) the Half-Troll is the one from Book of Templates.
Edit: Goofed and forgot to add in the natural armor bonus and the size penalty. Bad me.
Kil’terak (Lion + Half Human + Half-Troll)
Large Giant
Hit Dice: 5d10+30 (57)
Initiative: +1 (Dex)
Speed: 30 Ft
AC: 18 (-1 Size, +1 Dex, +7 Natural)
Attacks: 2 Claws +11 melee, Bite +6 melee
Damage: Claw 1d8+9, Bite 1d6+4
Face/Reach: 5 Ft. By 5ft/5ft
Special Attacks: Pounce, Improved Grab, Rake 1d6+9, Rend 2d8+13
Special Qualities: Darkvision 60’, Scent, Regeneration
Saves: Fort: +10, Ref: +5, Will: +0
Abilities: Str:29, Dex:13, Con:22, Int:8, Wis:9, Cha:6
Skills: Balance +10, Hide +9*, Jump +10, Listen +5, Move Silently +11, Spot +5
Feats: Alertness
Climate/Terrain: Any Land/Warm plains
Organization: Solitary or colony (2-12)
Challenge Rating: 3
Treasure: Standard
Alignment: Always Neutral
Advancement: By Character Class (Favored: Barbarian)
The Kil’terak are a strange hybrid of troll, lion, and man. They are smarter and faster than humans, stronger than the trolls, and hardier than lions. They combine the best aspects of all three species. They were originally created by a ruthless wizard as a slave race, unfortunately for him they grew wise to his abilities and soon rose up slayed him.
Ever since then the Kil’terak have been free. They have formed small tribes, growing larger by the year. They have a tendancy to conquer and rule over local humanoid tribes. They hate their parents more than anything though, at least the human and troll parents, and do anything in their power to harm them.
Perhaps the most frightening aspect of the Kil’terak is their strange ability to breed with any of their three parent races. Lion, human, or troll, when impregnated by a Kil’terak always produce a Kil’terak.
They stand at over 7 feet tall, dirt blonde fur, and a feral, somewhat cat like face with yellow eyes. The males sport a mane of darker fur, the females only have a very short light covering of fur across their body.
Combat
Improved Grab (Ex): To use this ability, the Kil’terak must its bite attack If it gets a hold, it can rake.
Pounce (Ex): If a Kil’terak leaps upon a foe during the first round of combat, it can make a full attack even if it has already taken a move action.
Rake (Ex): A Kil’terak that gets a hold can make two rake attacks (+12 melee) with its hind legs for 1d6+9 damage each. If the lion pounces on an opponent, it can also rake.
Regeneration (Ex): Fire and acid deal normal damage to a Kil’terak.
If a Kil’terak 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.
Rend (Ex): If a Kil’terak hits with both claw attacks, or both rake attacks, it latches onto the opponent’s body and tears the flesh. This attack automatically deals an additional 2d8+13 points of damage.
Skills: The Kil’terak receive a +4 racial bonus to Balance, Hide, and Move Silently checks. *In areas of tall grass or heavy undergrowth, the Hide bonus improves to +12.
Kil’terak Characters
The Kil’terak favor barbarians. They have druids for chieftans, and almost none become arcane spellcasters, those that do are cast out of the tribe, but not killed.