The Creed

Much like a Paladin, Rogue's who choose The Creed Archetype follow a set of tenets, but not due to a higher power, but to themselves and to others. These people believe in a strong set of values that strictly govern their way of life, consisting of two tenets:

"Stay your blade from the flesh of an innocent."
"Hide in plain sight, be one with the crowd."

Those who join adventuring groups or create a community of people with the same ideals as them, usually referred as a Brotherhood, follow a third tenet:

"Never compromise the Brotherhood."

These Rogues, which many refer as Assassins, believe that they fight on the behalf of those who do not possess the abilities, resources, or knowledge to speak out against those who abuse their power.

Those who break their tenets while in a Brotherhood are exiled, becoming renegades among their own people. Depending on the judgment, these exiled are hunted and executed by other Assassins, as they impose a danger to either the common folk or the Brotherhood itself.

Death From Above

Reaching 9th level, if you would land on space occupied by a creature, you can transfer the damage you would take to it, making a Dexterity (Acrobatic) check against the creature's AC. On a success, the falling damage you would take is instead dealt to the creature. Moreover, it falls prone if it's the same size or smaller than you, with you landing on a point within 5 feet of the creature of your choice.

Should you lend of a creature larger than you, you are considered climbing the creature, as depicted in Climb Onto a Bigger Creature mechanic under the Action Options section of the Dungeon Master's Guide.

On a failure, you take half (rounded up) of the falling damage and land prone within 5 feet of the targeted creature chosen randomly.

Leap Of Faith

"This gift we call a Leap of Faith. It is one of our Brotherhood's most sacred rites. It is not a tool we use against our enemies, but an act we embrace to strengthen our resolve. Like your meditation, it centers our minds, steadies our hands, and purges fear from our hearts."

Additionally at 9th level, you can use your reaction when you fall to reduce any falling damage you take by an amount equal to five times your rogue level. If you would land on a cushioning material such as hay, water, raised tents, or any other material determined by the DM, you take no damage from the fall.

In addition, your jump distance, for both high and long jumps, is tripled and your walking speed increases by 10 feet.

Man Of The People

Starting at 13th level, whenever you finish a long rest, a number of creatures of your choice, equal to your Dexterity Modifier, gain the Free-Running and Leap Of Faith features.

Any attempt to use this feature in a creature that would make the number of creatures higher than your Dexterity Modifier fails; you must end a creature's connection to the brotherhood first as an action.

Master Assassin

Finally, at 17th level, you are permanently under the effects of your Eagle Vision feature.

Assassin Gauntlet

Weapon (Dagger), Legendary, (Requires Attunement by a Rogue)

This dagger does not have the Thrown property, instead, it has the Concealed and Wrist-Mounted properties, alongside the following:

You have a +3 bonus to attack and damage rolls made with this magic weapon.

Brutish Speed. Your Dexterity scores increase by 2. Your maximum for those scores is now 22. Moreover, your Sneak Attack damage die becomes a d8 instead of a d6.

Grappling Hook. As an action action, you can make an ranged weapon attack roll with your grappling hook against a surface within 120ft of you. On a hit, the hook is attached to it firmly, allowing you to, as a bonus action, to pull yourself towards where the hook hit. You reach the surface at the end of your turn, where you are considered climbing it.

Hallucinogenic Gas. You can cast Hypnotic Pattern (Save DC 17). Once you have done so, Assassin Gauntlet can't be used this way again until you finish a short or long rest.