Edit: I forgot to say, the Elder Magical Beast is on a PDF from Fantasy Flight Game's site. It is the Legends and Lore Monster's Handbook free chapter.
Grandfather of the Swamp (Crocodile, Giant + Elder Magical Beast)
Gargantuan Magical Beast (Aquatic)
Hit Dice: 11d8+66 (115)
Initiative: +1 (Dex)
Speed: 20 Ft, Swim 30 Ft.
AC: 22 (-4 Size, +1 Dex, +15 Natural)
Attacks: Bite +15 melee; or tail slap +10 melee
Damage: Bite 4d6+16; or tail slap 2d8+16
Face/Reach: 15 Ft. By 25ft/15ft
Special Attacks: Improved Grab, Spell-Like abilities
Special Qualities: Speech, Spellcasting Affinity
Saves: Fort: +13 Ref: +6 Will: +6
Abilities: Str:35, Dex:12, Con:23, Int:18, Wis:15, Cha:14
Skills: Bluff +6, Diplomacy +6, Hide +6*, Knowledge (History) +8,
Knowledge (Local) +8, Knowledge (Nature) +8, Knowledge (Religion) +8, Listen +11, Sense Motive +6, Spot +11, Swim +20, Wilderness Lore +10
Feats: Leadership
Climate/Terrain: Warm Marsh, aquatic, and underground
Organization: Solitary or Pack (Leads 2-5 giant crocodiles) or Colony (leads 20-100 humanoids (lizardfolk))
Challenge Rating: 5
Treasure: Double Standard
Alignment: Always Neutral
Advancement: ?
The Grandfather of the Swamp is one of the oldest creatures alive. He has seen the birth and death of prominent dragons, and has witness the birth of humanoid civilizations as well as their fall.
He currently lives in a rather large salt marsh, tending to his children, the lizardfolk of the area look up to him as their progenitor, and all crocodiles bow in respect of his power. He often looks at mammals speculatively and has become distrustful of most non-reptilian humanoids.
Combat
The Grandfather of the Swamp rarely enters combat, and does so only when there is a great threat to his people, either species.
Improved Grab (Ex): To use this ability, the Grandfather must hit a huge or smaller opponent with its bite attack. If it gets a hold, the crocodile grabs the opponent with its mouth and drags it into deep water, attempting to pin it to the bottom. The crocodile automatically deals bite damage each round it maintains this pin.
Speech (Ex): The Grandfather speaks 7 languages
Spellcasting Affinity (Ex): The Grandfather may use spells unhindered by its physical form.
Spell-Like Abilities: 3/day any three 1st level divine spells as a sorcerer of 5th level.
Skills: *The Grandfather gains a +12 racial bonus to Hide checks while submerged. The Grandfather gain a +8 racial bonus to all Swim checks.