It’s genius, because these monsters are even on the same page.
Ok, here it is, templated up…
(Doppelganger/Displacer Beast – for lack of a better name at the moment)
Large Monstrous Humanoid (Shapechanger)
Hit Dice: 10d8+30 (75 hp)
Initiative: +2
Speed: 40 ft (8 squares)
Armor Class: 16 (-1 size, +2 Dex, +5 natural), touch 11, flat-footed 14
Base Attack/Grapple: +10/+18
Attack: Tentacle +13 melee (1d6+4)
Full Attack: 2 tentacles +13 melee (1d6+4) and slam +8 melee (1d6+2)
Space/Reach: 10 ft/5 ft (10 ft with tentacles)
Special Attacks: Detect thoughts
Special Qualities: Change shape, darkvision 60 ft, displacement, immunity to sleep and charm effects, resistance to ranged attacks
Saves: Fort +6 Ref +9 Will +9
Abilities: Str 18, Dex 15, Con 16, Int 13, Wis 14, Cha 13
Skills: 39 (favors: Bluff, Diplomacy, Disguise, Hide, Intimidate, Listen, Move Silently, Sense Motive, Spot) (-4 Hide for size, racial bonuses: +8 Hide for Displacement, +4 Bluff and Disguise)
Feats: 4 (favors: Alertness, Dodge, Great Fortitude, Stealthy)
Environment: Temperate hills?
Organization: Solitary or pair
Challenge Rating: X
Treasure: X
Alignment: Usually neutral
Advancement: 11-20 HD (Large); 21-30 HD (Huge)
Level Adjustment: +X
If you look closely, I didn’t follow the template rules exactly. That’s because we’re
breakin’ the law, breakin’ the law.
Time to make this guy interesting – more than just a templated creature. We can monkey around with it any which way… change the ability scores, natural armor, SA/SQ… discuss!
Personally, I like the HD as-is. This guy can be a badass, and it shows. The “marriage” of the two creatures gives us something pretty tough.