Shadow

With techniques surroundig the extreme use of stealth, a rogue who follows the shadow archetipe is exactly how it's name implies, you move like a shadow, creating openings and entrances to any kinds of places. Regardless of how well protected it may be, you can just slip through without anyone actually noticing.

Level 3: Faint Presence

At 3rd level, you learn how to hide your presence from others and relocate faster in order to mislead your opponents. Whenever you use your bonus action granted by your cunning action to take a hide action, you gain an additional 10ft to your movement speed that lasts until the end of your next turn.

Level 3: Cautious

At 3rd level, you learn how to better control your own body whenever you are not the center of attention. As long as you are hidden, you gain swimming and climbing speed equal to your movement speed. Also, whenever you fail a Save throw whilst hidden, you can roll an additional 1d6 and add it to the roll, attempting to turn the failure into a success. If you successfully turn it into a successfull save, you take no damage instead of half.

Level 9: Lightfooted

Starting at 9th level, you learn how to hide and cover your steps from special ways of perception. You cannot be detected by blindsight nor tremorsense.

Level 13: Shadow Movement

Starting at 13th level, you learn how to walk through the shadows without being noticed. Whilst in a dimly lit or dark place, you can spend 5ft of your movement to move to any place within 60ft that you can see and is also dimly lit or dark.

You also gain 60ft of darkvision.

Level 17: Shadow Attack

At 17th level, your sneak attacks become even deadlier. You score critical hits on rolls of 19-20 whilst hidden. Also, whenever you score a critical hit, you can choose a third cunning strike option to apply on your attack.