Salvage Rat (CR 1)

Tiny Construct
Alignment: Any (same as creator)
Initiative: +2 (Dex); Senses: low-light vision
Languages: Cannot speak

AC: 17 (+2 size, +2 Dex, +3 natural), touch 14, flat-footed 15
Hit Dice: 1d10 (5 hp)
Fort +0, Ref +2, Will +1
Speed: 15 ft., burrow 5 ft.(through metal only), climb 15 ft.
Space: 2-1/2 ft./0 ft.
Base Attack +0; Grapple -10
Attack: Bite +4 melee
Full Attack: Bite +4 melee
Damage: Bite 1d4-2 plus rust
Special Attacks/Actions: Rust
Abilities: Str 6, Dex 15, Con -, Int 2, Wis 12, Cha 2
Special Qualities: Construct traits, familiar traits
Feats: Weapon Finesse
Skills: Balance +10, Climb +10, Hide +8, and Move Silently +8
Climate/Terrain: Any
Organization: Solitary
Treasure: None

Source: Dragon #341


In combat, salvage rats dart from foe to foe hiding in the shadows and biting whenever possible while avoiding drawn out melee confrontations.

Rust (Ex): A salvage rat that makes a successful bite attack causes the target's metal armor to corrode and lose some of its protective value. Each bite reduces the armor bonus granted by -1 until the armor grants no bonus and is destroyed. Magic armor receives a DC 10 Reflex save to avoid this effect. The save DC is Constitution-based. This bite does not affect shields, weapons, or other pieces of metal equipment.

Skills: Salvage rats have a +4 racial bonus on Hide and Move Silently checks, and a +8 racial bonus on Balance and Climb checks. A rat can always choose to take 10 on Climb checks, even if rushed or threatened. A salvage rat uses its Dexterity modifier instead of its Strength modifier for Climb checks.