Sterling Vermin

When you bond to the sterling vermin, choose two from hearing, sight, and smell. The vermin has advantage on Wisdom (Perception) checks it makes that rely on one or more of the chosen senses.

The sterling vermin can squeeze through a space as narrow as three inches wide, and it can move through and occupy the space of any creature that is of its size or larger. It can attempt to hide even when it is obscured only by a creature that is at least one size larger than it. It has advantage on Dexterity (Stealth) checks it makes to hide within your clothing or packs, such as in a hood, pocket, or fold.

When the sterling vermin is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails. It has advantage on Dexterity saving throws while it occupies the same space as a creature larger than it.

The sterling vermin's natural weapon counts as a set of thieves' tools^'24 for the purpose of disarming traps and picking locks. It adds its PB to any ability check it makes using its natural weapon as thieves' tools^'24.

Once you reach 6th level in this class, the sterling vermin's natural weapon is magical.

Melee Weapon Attack: your Dexterity modifier + PB to hit, reach 5 ft., one target. Hit: 1d4 + PB damage. The damage type is bludgeoning, piercing, or slashing; you choose one of these damage types when you bond to the sterling vermin.

The sterling vermin stows one object within or retrieves an object from a container within its reach that is worn or carried by another creature whose space the vermin occupies. It then makes a Dexterity (Sleight of Hand) check against the target's passive Perception score. On a success, the vermin completes the task undetected.