So, a few weeks ago a friend was running The Divinity Drive, and asked me to build something with which to challenge his party. Having only the vaguest of concepts of what his party had available, I created what I dubbed the mechabehir. It apparently somewhat scared the group, but I thought I'd share it.
Mechabehir CR 19/MR 1
XP 204,800
Agile bestiary monster creation (Pathfinder RPG Mythic Adventures)
N Huge construct (robot)
Init +23/+3, dual initiative; Senses darkvision 60 ft., low-light vision, superior optics; Perception +40
--------------------
Defense
--------------------
AC 36, touch 13, flat-footed 31 (+3 Dex, +2 dodge, +23 natural, -2 size)
hp 199 (23d10+73); force field (0 hp, fast healing 19)
Fort +7, Ref +10, Will +11
Defensive Abilities evasion, reflective armor; DR 5/epic; Immune construct traits, electricity
Weaknesses vulnerability to critical hits, vulnerability to electricity
--------------------
Offense
--------------------
Speed 70 ft., climb 50 ft., fly 90 ft. (average)
Melee bite +30 (2d6+12/19-20 plus grab)
Ranged (M) +5 shocking burst rail gun +25 (3d10+5/×4 plus 1d6 electricity) or
. . (M) +5 shocking burst rail gun +25 (3d10+5/×4 plus 1d6 electricity)
Space 15 ft.; Reach 15 ft.
Special Attacks constrict, constrict (2d6+8), rake (6 claws +29, 1d6+8), swallow whole (AC 21, 19 hp)
--------------------
Statistics
--------------------
Str 26, Dex 16, Con —, Int 10, Wis 15, Cha 8
Base Atk +23; CMB +33 (+37 grapple); CMD 48 (can't be tripped)
Feats Alertness, Cleave, Flyby Attack, Great Cleave, Greater Vital Strike, Hover, Improved Critical (bite), Improved Vital Strike, Iron Will, Power Attack, Toughness, Weapon Focus (bite)
Skills Acrobatics +3 (+19 to jump), Climb +16, Fly +25, Perception +40, Sense Motive +4
SQ auto-destruct core, integrated weaponry
Other Gear +5 shocking burst rail gun, +5 shocking burst rail gun
--------------------
Special Abilities
--------------------
Auto-Destruct Core (DC 21) (Ex) As full rd act, can self destruct dealing 1d10 dmg/hit die (Ref half).
Cleave If you hit a foe, attack an adjacent target at the same attack bonus but take -2 AC.
Climb (50 feet) You have a Climb speed.
Constrict (Ex) On a successful grapple check, you deal 1d8+6 points of damage.
Construct Traits (+40 HP) Constructs have many immunities.
Damage Reduction (5/epic) You have Damage Reduction against all except Epic attacks (weapons with a +6 bonus).
Darkvision (60 feet) You can see in the dark (black and white only).
Dual Initiative (Ex) You act a second time each round at -20 from your normal initiative
Evasion (Ex) If succeed on Reflex save for half dam, take none instead.
Fly (90 feet, Average) You can fly!
Flyby Attack You can take a standard action during your move action while flying.
Force Field (fast healing 19, 95 hp) Force field absorbs damage first and has fast healing until depleted. 24-hr recharge.
Grab (Huge, Bite, Bite) (Ex) You can start a grapple as a free action if you hit with the designated weapon.
Hover Can hover in place without Fly checks, and kick up dust cloud if within 20 ft of ground.
Immunity to Ability Damage Immunity to ability damage
Immunity to Ability Drain Immunity to ability drain
Immunity to Bleed You are immune to bleed.
Immunity to Death and Necromancy effects You are immune to Death and Necromancy effects.
Immunity to Disease You are immune to diseases.
Immunity to Electricity You are immune to electricity damage.
Immunity to Energy Drain Immune to energy drain
Immunity to Exhausted You are immune to the exhausted condition.
Immunity to Fatigue You are immune to the fatigued condition.
Immunity to Mind-Affecting effects You are immune to Mind-Affecting effects.
Immunity to Nonlethal Damage You are immune to Nonlethal Damage
Immunity to Paralysis You are immune to paralysis.
Immunity to Poison You are immune to poison.
Immunity to Sleep You are immune to sleep effects.
Immunity to Stunning You are immune to being stunned.
Integrated Weaponry (Ex) You can have weapons installed into you. (Twin rail guns, can be used with the same action)
Low-Light Vision See twice as far as a human in dim light, distinguishing color and detail.
Power Attack -6/+12 You can subtract from your attack roll to add to your damage.
Reflective Armor (Ex) The mechabehir's armor can deflect ray and energy weapon attacks. Against such attacks, there's a 50% chance to deflect the attack, and if deflected, roll 1d4. On a 1, the attack is reflected back at the attacker with the same attack and damage modifiers.
Superior Optics (Ex) The robot can see invisible creatures or objects as if they were visible.
Swallow Whole (AC 21, 19 HP) (Ex) You can swallow smaller targets whole.
Vital Strike [Mythic] Vital Strike multiplies dam bonus by number of extra weapon dice rolled.
Vulnerability to Critical Hits When take extra dam from a crit, stunned 1 rd (DC 15 Fort neg).
Vulnerability to Electricity You are vulnerable (+50% damage) to Electricity damage.
Hero Lab and the Hero Lab logo are Registered Trademarks of LWD Technology, Inc. Free download at http://www.wolflair.com
Pathfinder® and associated marks and logos are trademarks of Paizo Inc.®, and are used under license.
I was the DM for it; I used it to replace the gargoyle gunslinger on the bridge, as I felt he didn't pose nearly enough of a challenge to my party. Even putting him and Ophelia together only slowed them a bit.
The dual-initiative was the best part, as the party had to scramble to try and keep this thing away from them, as he tore through their front-liners, gleefully, which, fortunately, were only summoned monsters and an animal companion. The reflection was also put in, specifically to frighten the gunslinger, who'd become FAR too comfortable with sniping things for oodles of damage.
Overall, I give it high marks, if only because I think the party was more afraid of it than Unity.