Rex AL-06a Mobile Launcher (3.5e Monster)

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Author: Eiji-kun (talk)
Date Created: 4-10-16
Status: Complete
Editing: Clarity edits only please
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Rex AL-05a Mobile Launcher
Size/Type: Colossal Construct (Bot, Vehicle)
Hit Dice: 30d10+80 (245 and shield 150 hp)
Initiative: +0
Speed: 60 ft
Armor Class: 38 (+6 deflection, +30 natural, -8 size), touch 8, flat-footed 38
Base Attack/Grapple: +18/+50
Attack: Slam +26 melee (6d6+24, 20/x2) or Vulcan Cannon +26 ranged (4d6+24, 20/x2)
Full Attack: Two Slams +26 melee (6d6+24, 20/x2) or Vulcan Cannon +26/+21/+16/+11 ranged (4d6+24, 20/x2)
Space/Reach: 30 ft/20 ft
Special Attacks: Disruption Wave, Missile Battery, Rail Gun, Starburst Missile, Self-Destruct, Stomp, Vulcan Cannon
Special Qualities: Bot Traits, Booster Jets, Construct Traits, Crew, Darkvision 60 ft, DR 30/adamantine, Energy Resistance (All) 20, Low-Light Vision, MADAR Dish, Programming, Radio Link, Shield Dish, Stability +30
Saves: Fort +10, Ref +10, Will +13
Abilities: Str 42, Dex 10, Con -, Int -, Wis 17, Cha 1
Skills: Jump +46
Feats: Brutal ShooterB
Environment: Any
Organization: Solitary
Challenge Rating: 19, or 23 with pilot (whichever is higher)
Treasure: None
Alignment: Always Neutral
Advancement: 31-60 HD (Colossal), 61-90 HD (Titanic)
Level Adjustment:

A giant military robot stands before you on two legs, its elongated body almost resembling a tyrannosaurus rex, with a large boxy head and a nose acting as the face of a missile battery. Small cameras dot its body all over, while two dishes lie on its shoulders almost like shields. Of course, the big gun was a large barrel held on its back. A rail gun capable of projecting nearly any weapon well over the horizon, from sabots, titanium rods... perhaps even nuclear warheads.

The origins of this obvious super weapon are clouded. Its supposed creators, the normally peaceful Scientia company, disavow its existence. They claim the AL-06a model was a prototype that was scrapped and was nowhere near this size, yet it vaguely resembles the far smaller and more nimble Djadokhta AL-06c Anti-Personnel Hunter. It may be that the original AL-06a's plans were taken, modified, and improved into this terrifying war-beast. The Rex is a mobile weapons platform capable of surviving many terrains, bristling with weapons, and is capable of acting both on its own or with a pilot. Its heart beats with a nuclear core, which in times of danger it is capable of overloading and spreading fallout in a wide area. Needless to say, the rex is dangerous, even in defeat.

The rex is about 60 ft long, 40 ft high, and weights a massive 42 tons! It only communicates through beeps, "grinding sounds", and guttural roars of its venting system. Because of their rarity, no consistent personality quirks have been determined, if any.


The rex is straight forward with its programming, dutifully proceeding with the mission to the best of its ability. When piloted, it is subject to the whims of the pilot and their abilities.

Booster Jets (Ex): The rex has a set of powerful booster jets that allow it to make running jumps from a standstill, and gives it a +30 jump bonus. It also halves any falling damage it would otherwise take. Its normal motion is always being augmented by the presence of booster jets, accounting for its fairly nimble speed for a creature of its bulk.

Crew: The rex has room for a crew of one, contained within the head through what would be its "mouth". While inside, the pilot has total cover and a life-support system providing oxygen. Activating a rex requires a DC 25 Knowledge Xeno check. When occupied, use either its normal or the pilot's saving throws and BAB. More importantly, when occupied with a pilot the rex gains a second full round of actions it is capable of using. This makes piloted rex units extremely dangerous!

Disruption Wave (Su): The rex can emit disruptive waves of electromagnetic and magical energy, which functions as greater dispel magic (CL 19), but can also shut down advanced technological devices without shielding as if they were magic items. Treat these items as having a caster level equal to 0, or the level of the creature using it if attended. It may use its disruption wave once every 5 rounds.

MADAR Dish (Su): The rex's left shoulder contains its MADAR dish, allowing it all sorts of sensory powers. It has the ability to use detect magic and detect heat at will, and it gains blindsense 60 ft and blindsight 20 ft. The MADAR Dish can be targeted and sundered as if it was a held weapon or shield. For the purposes of sundering, it has hardness 10 and 150 hp.

Missile Battery (Ex): The rex can use rain of fireballs (CL 19) as an extraordinary ability. It may use this once every 1d4 rounds at DC 25, and the Reflex save is Constitution based.

Programming: The rex possesses the following programs: Attack, Calculate, Identify Creature, Identify Object, Protect, and Reposition.

Radio Link (Ex): The rex is capable of listening to, intercepting, and sending radio messages, allowing it to communicate to any creature with radio or the Share Mind function certain constructs possess. It can communicate out to 10 miles, or further if it has any sort of base or satellite support. It can also focus on receiving video and audio signals as a move action, gaining the viewpoint of the device or construct it is communicating with. This allows it to fire over the horizon ignoring total concealment for doing so, provided it has a visual of its target.

Rail Gun (Ex): The rex has a siege railgun build in. It cannot move while firing the railgun, and must lock itself into the ground as a standard action before firing. It is also a standard action to unlock itself, and when locked into the ground its stability rises to +60.

Self-Destruct (Ex): The rex does not have death throes, but it is capable of destroying itself by overloading its nuclear core. If the rex is destroyed, but has more than -100 hp, it is still intact and its self destruct may still be activated. It may also be "revived" given the right tools, materials, or spells. Activating self-destruct is a standard action, and results in a tactical nuke, destroying the rex. If it is brought below -100 hp, its body is beyond repair. There is a 10% chance that this will rupture the core, resulting in a tactical nuke which deals half damage and has its range cut in half. The resulting leftover radiation lasts for far longer, lasting 1 day/level instead of 1 round/level, as most of its nuclear fuel has not detonated. The DC for the nuclear explosion is DC 25, and the saving throw is Constitution based.

Shield Dish (Su): The rex's right shoulder contains its shielding dish, and is the device which grants its shield. The shield gives 5 temporary hp per HD, and a +6 deflection bonus while it is active. It regenerates 30 hp each round.

Starburst Missile (Ex): This powerful attack is difficult to set up as the attack is very obvious and slow, out to Long range. The rex fires a large missile into the air, and it comes down after 1d2 rounds. It attacks a huge area, a 80 ft radius cylinder 50 ft high which dealings 19d10 points of piercing damage and 19d10 fire damage with a DC 25 Reflex save for half. Creatures over 50 ft above the ground are unaffected, and you must have a ceiling of at least 200 ft high to use this ability. Alternatively you can fire an airburst missile, which hits everything between 50 ft high and 500 ft high, but leaves the ground untouched. It only carries a few of these at a time, allowing it to use it 2/day.

Stomp (Ex): The rex can stomp down hard as a standard action, shaking the ground and pinning creatures under its feet. In a 5 ft radius area anywhere in its reach, creatures must make a DC 41 Reflex save or take its slam damage, and become pinned, taking its slam damage every round. The rex moves into the space of any pinned creatures and cannot move until it releases the creature. Creatures can escape being pinned with opposed grapple checks, a single success is enough to move them into the closest unoccupied space, prone.

All creatures in a 60 ft radius of the stomp must make a Reflex save, DC 41, or fall prone and take its 6d6 points of nonlethal damage. Buildings and fortified structures in the area takes its normal slam damage.

Vulcan Cannon (Ex): The rex's vulcan cannon is a ranged weapon which deals 4d6 piercing damage, and has a range increment of 100 ft.

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Eiji-kun's Homebrew (5338 Articles)
AlignmentAlways Neutral +
AuthorEiji-kun +
Challenge Rating19 + and 23 with pilot +
EnvironmentAny +
Identifier3.5e Monster +
Level Adjustment+
RatingUndiscussed +
SizeColossal +
SubtypeBot + and Vehicle +
TitleRex AL-06a Mobile Launcher +
TypeConstruct +