Beast Titan (5e Creature)
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Gargantuan aberration, neutral evil
Transformation. A Titan shifter can transform into a Titan, in this case, the Beast Titan. When the Titan shifter in human (or humanoid) form has a purpose in their heart and damages themselves, he or she shifts into a Titan. The Titan forms out of air and manifests in seconds. The shifters Intelligence, Wisdom, and Charisma scores stay the same (the ones in the stat block are from the Zeke, the shifter from Attack on Titan). Once the Titanshifter wants to revert back to humanoid form, he or she will pop out of the Titan's nape, and the body will slowly melt into steam.
Curse of Ymir. 13 years after its first transformation, the Titan shifter will die. Only a wish spell can prevent this from happening.
Siege Monster. The Beast titan deals double damage to objects and structures.
Regeneration. The Beast Titan recovers 20 hit points at the start of each of its turns. The humanoid inside it also regenerates half of these hit points. If the Beast Titan takes any form of damage to the nape of its neck, this trait doesn't function at the end the Beast Titan's next turn. The Beast Titan only dies if the humanoid inside it dies.
Weak Point. The nape of the Beast Titan's neck is a weak point. An attack which specifically targets the Attack Titan's nape deals damage to the person inside (Zeke has 50 hit points). If the person inside dies, the Titan dies instantly. You must climb up the Beast Titan to the nape with a Melee attack, or you can try to shoot it with a ranged weapon at disadvantage.
The Beast Titan can throw giant boulders if it has any in these two ways:
Throw Boulder. Ranged Weapon Attack: +13 to hit, range (300/1200), one target. Hit: 29 (4d10 + 7) bludgeoning damage.
Throw Shattered Boulder. Ranged Weapon Attack: Choose a point that you can see within 400 feet. Anyone within a hundred foot cone of that point facing away from you must make a DC 21 Dexterity saving throw or take 57 (20d4 +7) bludgeoning damage, or half on a save. It takes one action to shatter the boulder beforehand.
Punch. Melee Weapon Attack: +16 to hit, range 20 feet target, one target. Hit: 46 (6d12 +10) bludgeoning damage.
The Beast Titan stands at 17 meters tall, and ironically resembles a giant ape. It has brown fur, an overly fat stomach, and long arms that can throw things very far relative to its size. The Beast Titan is one of the few Titans that can speak in Titan form, and can make out full sentences in a deep, booming voice.
Made to be used in The Walls (Attack on Titan) campaign setting.
2,000 years ago, the founder of the Titans, Ymir Fritz, died. Her powers were split into 9 powers, one of them being the Beast Titan. It was passed down throughout the Eldian empire until the Marley empire took over the world and stole seven of the nine Titans, including the Beast Titan. 100 years later, it was passed down to Zeke jaeger, an Eldian Warrior cadet living in the Liberio internment zone. His parents forced him into the Marley Warrior program so he could inherit a Titan and take on Marley from the inside, but Zeke betrayed his parents and became a loyal follower of Marley. In truth, he sold out his parents because he knew they were going to get caught by Marley officials anyways, and he knew if he turned them in himself he would get special attention for his undying loyalty to Marley. He inherited the Beast Titan for his actions, and managed to keep the secret that he has royal blood and is capable of wielding the Founding Titan. His end goal is to use the Founding Titan to painlessly eradicate every Eldian from the face of the Earth to end the cursed history of the race that can turn into Titans.
Variant Trait: Skin Hardening
This is a trait that all Titanshifters can learn through practice. What it does is essentially harden the skin so that only adamantine and heavy-impact weapons could break through it. As an action or reaction, the Beast Titan can turn a portion of their skin into hardened Titan skin, an almost indestructible material that weighs next to nothing more. When used, it remains for one minute before dissipating. This feature can only be used once per Titan shift. If a hand is hardened, the Punch attack deals double damage. Increase the Beast Titan's Challenge rating by one if this feature is used.
Alternatively, if the Beast Titan shifter has ingested the armor serum, this ability can be used to create hardened tendrils from the body of the titan in order to create near-indestructible structures. As an action, the Beast Titan's can make it's entire body become frozen in the hardened skin and cannot move (except for the nape). For every round following this one, the Beast Titan can create up to 50 cubic feet of hardened Titan skin structures, so long as it all connects and can support itself. This can be done for the next minute, and remains even if the Titanshifter leaves the nape of the Titan. If this feature is used, increase the challenge rating of the Beast Titan by another 1.