Caster Corpsman

You have been chosen as a conduit of one color of the Emotional Spectrum. Your Caster Ring channels your dominant emotion into tangible cosmic energy, granting you abilities associated with your Corps.

Emotional Affinity. When you gain this feat, choose one emotional color: Green, Blue, Red, Yellow, Violet, Orange, Indigo, Black, or White. Your ring permanently assumes that color unless your DM allows you to change your emotional affinity through a significant story event.

Your Caster abilities use Charisma. Your Caster save DC equals 8 + your Proficiency Bonus + your Charisma modifier. Your Caster attack modifier equals your Proficiency Bonus + your Charisma modifier.

Emotional Surge. You gain one Emotional Surge associated with your chosen color. You can use this ability once per Short or Long Rest. You regain its use when you finish either rest.

Emotional Resonance. You gain a passive benefit associated with your chosen color. This benefit remains active while your Caster Ring is functioning.

Caster Ring

Your ring is a living manifestation of The Choice. It channels your emotional energy into physical constructs and cosmic abilities.

Your ring is bound to your soul and cannot be removed against your will while you are conscious. You can summon or dismiss it as a Bonus Action.

Your ring is capable of functioning in any environment, including the vacuum of space, underwater, and within hostile planes of existence.

If your ring is destroyed or becomes inactive, you lose access to your ring-based features until it is restored or recharged.

Caster Ring Recharge

As a Magic action, you can recite the oath of your Caster Corps (found in Caster Battery legendary item) to recharge your Caster Ring. You must maintain Concentration while holding the Caster Ring to the Caster Battery for the duration of the recitation. Once you finish the oath, your ring is fully recharged and its power is restored.

If you fail to recite your oath or lose Concentration before completing it, the recharge fails. A Caster Ring that isn't recharged this way loses its power and becomes inactive after 24 hours. While inactive, you lose attunement and it cannot be used to create constructs or activate any of its magical properties.

Cosmic Protection

Your ring automatically generates a protective aura of energy matching your emotional color.

While wearing your functioning Caster Ring, you gain the following benefits:

• You can breathe underwater, space, and in environments where you would otherwise be unable to breathe.
• You are protected from the harmful effects of extreme temperatures.
• You are protected from environmental radiation and similar cosmic hazards.

Universal Translation

Your ring automatically translates languages and deciphers written communications.

You can understand any spoken language you hear and any written language you can see, provided the language has a conventional linguistic structure.

You can also communicate with creatures that do not share a language with you. This ability does not allow you to understand secret codes, magically encrypted messages, or nonlinguistic thoughts.

Conjure Sentry

You can use a Bonus Action to create a spectral duplicate of yourself in an unoccupied space within 30 feet.

The duplicate has your AC, and has Hit Points equal to half your Hit Point maximum. It can move and mimic your attacks, using your attack modifiers and dealing half the normal damage.

The duplicate acts immediately after your turn and obeys your telepathic commands. It cannot cast spells, activate magic items, or use your Emotional Surges.

Construct Mastery

You have mastered the creation of solid-light constructs, allowing you to manifest weapons, creatures, machinery, and other objects through your imagination.

As an Action, you can create a construct in an unoccupied space within 120 feet of yourself. The construct can take any shape you imagine and lasts for 10 minutes, until it is destroyed, or until you dismiss it.

Your constructs obey your telepathic commands and can move independently of you. 

The construct acts immediately after your turn. You can command it telepathically without using an action. You can use a Bonus Action to command it to take the Attack action. If you issue no command, it takes the Dodge action.

The construct's damage increases when you reach certain character levels: 3d10 at level 11 and 4d10 at level 17.

If you create a construct while already at your maximum, you must dismiss one of your existing constructs.

The Choice

The Choice manifests as a quiet consciousness within your mind. It is neither benevolent nor cruel. It observes your decisions, tests your emotional integrity, and evaluates your relationship with the full Emotional Spectrum.

The Choice does not demand that you always act kindly, courageously, or selflessly. Instead, it demands that you acknowledge your emotions and make your own choices rather than surrendering to fear, anger, or any other single emotion.

Emotional Integrity

When you act in accordance with your genuine emotions, even when those emotions are painful or contradictory, your bond with The Choice strengthens.

When you deliberately suppress or deny your emotions, your bond may weaken. The DM determines when your actions meaningfully affect your relationship with The Choice.

The Choice's Judgment

If you repeatedly deny your emotions or attempt to use the ring in ways that contradict your true self, The Choice may begin to withdraw its power.

The Choice can communicate with you telepathically, offer guidance, challenge your decisions, or refuse to cooperate with certain actions.

Severed Connection

If you completely deny your emotional nature or abandon your responsibility as a conduit of the spectrum, The Choice may abandon you.

If this happens, your ring becomes inactive, and you lose access to all features that require it. The DM determines what actions or circumstances might restore your connection.

The Choice is not a master. It does not control your actions or dictate which emotions you should feel. Its purpose is to ensure that you remain the one making the choices.