Valet (5A)

This is an original Rogue subclass for 5A.

You are a personal servant able to provide support and comfort for others. A hallmark of a good servant is the ability to only be visible when asked for, able to fade into the background yet be constantly attentive to the master's needs. You are spoken of as a valet, butler, or maid when you are spoken of at all.

Source: Original

Subclass Features

Creature Comforts

At 3rd level, you are capable of providing for the comfort of others through attention and foresight. Mostly, this is a role-playing effect, but when you or an ally within 100 ft. takes a short rest and expends Hit Dice to heal, add your proficiency bonus to the number of Hit Points recovered.

Invisible Servant

Starting at 3rd level, you are able to be very unobtrusive (but not actually invisible) when properly attired. You are able to use Stealth to hide against creatures of the Humanoid type even when you don't have cover or concealment. In most cases, you won't even have to roll to remain unobtrusive. When a humanoid creature wants privacy, you must make a Dexterity (Stealth) check normally in order to hide, but you do not need cover to do so.

If you cause a ruckus by attacking or otherwise performing outrageously while using this ability, and an intelligent creature that is not an ally sees this and spreads the word, you cannot use this ability again until you have finished a long rest.

Serve a Master

At 3rd level, when you finish a long rest, you can select a creature within 500 ft. to be your master. You and the master do not need to see each other, but you must both be aware of the other's existence and willing to enter a servant-master relationship. The relationship lasts until either of you ends it as an action or you begin serving a new master.

You can use the Help action to assist your master as an action, bonus action, or reaction, and you can do so at a range of 30 feet. You need not be capable of performing the action you are assisting, but you and your master must be able to see each other. When you Help your master to cast a spell, increase the level of the spell slot the master used to cast that spell by one to determine the spell's effects.

Like Master, Like Servant

At 9th level, when you Serve a Master, you can imitate some of the master's abilities.

If your master is proficient in a skill, you become proficient in that skill. If you are already proficient in that skill, there is no effect.
If your master is proficient with saving throws for a certain ability, you gain proficiency with saving throws for that ability.
If your master is able to use a certain magic item, you are able to use that magic item as well.

Master's Mansion

At 13th level, your discretion becomes legendary. You you can cast Nondetection without a material component, but you can only target yourself and your master. You can also cast Mordenkainen's Private Sanctum as a ritual by inspecting and cleaning the area to be protected. Though these are magical spells, you and most others think of them as mundane effects of your work, and you have no limit on how often you can use these abilities.

Pillar of Strength

At 17th level, as a reaction, you can give a creature within 100 feet who you can hear or see (including yourself) advantage or disadvantage on any ability check, saving throw, or attack roll they are about to make.

Designer's Notes

Done for fun, the capable maid is a classic anime trope.