Note- This is a general, raw, and loosely worded groth Tree, this is not permanent or specific, this frames a general idea for the powers and scale.
Please keep that in mind
Crimson Spine- GrothType Kagune -Growth Tree
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C Rank – Emergence Stage (Rinkaku Core)
Kagune Form:
A single, thick Rinkaku tentacle erupts from the lower spine. It's coarse, veiny, and constantly pulsating, resembling a raw mix of sinew and blood. The structure is unstable but physically powerful.
Abilities:
Basic Regeneration: Minor wounds (cuts, small fractures) regenerate slowly.
Crushing Force: The tentacle is capable of smashing stone or bone with direct strikes.
Primitive Forming: Can form crude weapons like clubs or basic spikes.
Instinctual Control: Acts with animal-like reflexes, but lacks finesse.
Limitations: No range, no detachment, no control over shape density.
Description:
A basic but dangerous form, ideal for brute-force encounters. The kagune behaves more like a whip or brute appendage than a refined weapon.
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B Rank – Dual Manifestation (Rinkaku + Ukaku Infusion)
Kagune Form:
Two tentacles emerge—one retains its heavy Rinkaku build, the other thins out and takes on a Ukaku-like crystalline structure, shimmering and semi-aerial.
Abilities:
Improved Regeneration: Deeper wounds close within minutes.
Enhanced Reflex Speed: The Ukaku-type tentacle accelerates user movement and striking speed.
Partial Detachment: Segments can break off and act briefly on their own.
Structural Flexing: Can alter tentacle hardness, allowing for whip-speed strikes or hammer-like blows.
New Traits:
*Eyes begin forming along the kagune—small, blinking orbs that enhance perception.
Basic shapeshifting based on combat needs: blades, lashes, cones.
Description:
At this rank, speed joins power. The user now uses the tentacles with far more intelligence and adaptability. Partial biological intelligence begins manifesting in the kagune.
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A Rank – Hybrid Symmetry (Rinkaku + Ukaku + Koukaku Traits)
Kagune Form:
Four tentacles now sprout: two Rinkaku, one Ukaku, and one begins to manifest Koukaku plating—a heavier, armor-like build used for shielding and heavy punches. All limbs are biologically distinct but interconnected.
Abilities:
Advanced Regeneration: Full limb regeneration within minutes.
Adaptive Weaponry: Can switch between weapon forms mid-fight: spears, shields, pincers, saw-like extensions.
Autonomous Control: Tentacles can briefly operate without user focus, countering attacks or defending flanks.
Cellular Manipulation (Mid-Level): The user can control the texture and density of each kagune arm. E.g., softening one to trap, hardening one to pierce.
Visual Traits:
Tentacles now have bioluminescent eyes and mouths, randomly blinking or snapping.
When tentacles clash, a shockwave bursts—indicating stored RC pressure.
Description:
This stage blends offense, speed, and defense. Tentacles have learned rudimentary strategies, often acting like defensive limbs or grabbing enemies on instinct.
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S Rank – Command Form (All Four Types + Full Integration)
Kagune Form:
Five tentacles. One is Bikaku-influenced: more stable, grounded, and acts as a support or anchor. All five limbs now interlink abilities—for example, a Rinkaku limb can take on partial Koukaku armor or Ukaku razor fins.
Abilities:
Superior Regeneration: Internal organs and vital systems regenerate swiftly.
Multi-Type Shaping: Arms can morph into compound weapons (e.g., a heavy hammer with explosive crystal tips).
Perfect Tentacle Control: The user can manipulate each kagune limb like a separate limb of their body—no mental lag.
High-Level Biokinetic Adaptation: In-battle changes: converting an arm into a shield mid-hit, or storing kinetic force to release later.
Traits:
Organic Eyes now cover the user's back and tentacles.
* Tentacles can "smell" RC energy and react before the user does.
Description:
The user has reached a general-level combat form. The kagune has almost caught up to the user's nervous system, forming perfect synergy between mind and limb.
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SS Rank – Bio-Warform (Kakuja Interface Begins)
Kagune Form:
The user's kagune wraps partially around the torso and face, showing signs of Kakuja evolution. Limbs grow larger, developing carapace-like armor, and the user gains additional support appendages (spinal spines, tail-like extensions).
Abilities:
Kakuja Regeneration: Near-immortality in combat; even decapitation can be survived if RC core is intact.
Multi-Construct Formation: Wings, claws, tail weapons, and armor can all manifest as needed.
Subconscious Command: Kagune limbs can act independently and **respond to threats before the user notices them**.
Biofield Control: RC presence begins affecting nearby space, distorting air and eroding materials.
Description:
The user is now transitioning from individual combatant to living weapon. The kagune is a highly complex entity capable of maintaining battle presence in multiple directions at once.
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SSS Rank – Crimson Abyss (Autonomous RC Entity)
Kagune Form:
The user is surrounded by an undulating massive flow of crimson fluid, shaped into countless tendrils, mouths, wings, and claws. The kagune is no longer bound to fixed shapes—it flows like blood, yet strikes like iron.
Abilities:
Absolute Regeneration: Regrow from scattered biomass.
Field Domination: The battlefield becomes an **RC-infected biome, reacting to enemy presence with autonomous attacks.
Hive Limb Creation: Up to 12 semi-intelligent limbs can act as independent avatars.
Environmental Corruption: Surfaces infected with the user's RC signature mutate, creating natural hazards and absorbing RC from others.
*mTraits:
Whispering Mouths and Eyes cover the kagune mass.
* The user hovers or walks partially submerged in their own blood-flow.
Description:
The user has evolved into a **bioweapon ecosystem**. The kagune is aware, self-healing, and self-acting. Only the most powerful opponents can survive being in the same area.
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Dragon-Level – Final Form: Crimson Cataclysm
**The RC Godform. Territory-scale Kagune.**
* **Kagune Form**:
The user's body becomes a core nucleus embedded in an ocean of flowing blood—**an entire city's worth of biomass**. Tendrils large enough to crush buildings emerge like vines. Towers of kagune erupt like roots. The sky rains RC dust. Every drop of blood is a weapon.
Abilities:
Crimson Flood – Global RC Expansion
* Turns cities into RC zones. Structures mutate. Streets crack and bleed.
* Blood floods the environment and acts with the user's will.
Vampiric Feast – Infinite RC Drain
* All living beings caught in the flood are drained and converted into RC biomass.
* The user grows stronger with every consumed soul.
Kagune Clones – Spawned Avatars
* Full-sized doppelgangers of the user emerge from the blood, each with partial abilities.
* Clones can regenerate and sacrifice themselves to protect the core.
Crimson Armor – Invincible Core Shell
*The core body is protected by an ever-regenerating shell.
* Nothing short of RC saturation bombs can breach it.
Description:
Crimson Cataclysm is the end of all battle. The user becomes a living catastrophe, spreading their kagune like a world-ending plague.