Prowler

Dreamlands cats have mastered the tactic of lunging with sudden ferocity, allowing them to exploit their size as an advantage rather than a detriment. Although a rogue of any size could, in theory, take the prowler archetype and practice the techniques it teaches, Small and larger creatures can’t as reliably make use of these abilities. As a result, only Tiny creatures typically take this archetype.

Prowl

When you choose this archetype at 3rd level, you gain its signature feature: you can move through the space of any creature of a larger size category, and you can end your movement in another creature’s space. A creature larger than you can choose to avoid giving you cover even though you are in its space if it is aware of you and able to move, although it doesn’t have to use any of its movement to do so.

Slinking Leap

Starting at 3rd level, you become adept at confounding foes with sudden changes of direction. You can use the bonus action granted by your Cunning Action to use the Help action to aid the next attack against a creature within 5 feet of you. You can also use the bonus action to interfere with attacks against a target you can see. The first time a creature within 5 feet of you attacks the designated target before the start of your next turn, it makes the attack roll with disadvantage.

In addition, while in another creature’s space, you can use your action to attempt a Dexterity (Acrobatics) check contested by the other creature’s Strength (Athletics) or Dexterity (Acrobatics) check (target’s choice). If you succeed, you can knock it prone or cause it to drop a held item of your choice. If your mouth is free when you cause a target to drop a Tiny held item, you can catch the item as it falls.

Underfoot

At 9th level, you gain the ability to use larger creatures’ own bodies as cover against them. As long as you are in the same space as a creature of a larger size category than you, you have half cover against it. A creature larger than you can’t avoid providing you with half cover against your other enemies, even if those enemies attack from multiple directions.

You lose the benefit of this feature while you are unable to move.

Death from Below

At 13th level, you are adept at exploiting the distraction provided by other creatures. As long as you are in a larger creature’s space and an ally of yours that is not incapacitated is within 5 feet of the larger creature, you have advantage on attack rolls against the larger creature whose space you share.

Fleeting Shadow

When you reach 17th level, you are almost impossible to keep track of, like a fleeting dream. You have advantage on Dexterity (Stealth) checks to hide from vision and hearing.

You can even confound magic that would reveal you by using your reaction when a spell or other magical effect would yield information about you. You know only that you are able to use this feature before you must decide whether or not to use your reaction. If you elect to use this feature, you learn what information the spell or effect would have revealed, and you can then choose to return no information at all or you can choose another creature you can see of a larger size; the effect yields comparable information about the creature you chose.