Shadow Mastiff (CR 6/MR 2)

Although shaped like a dog, this muscular creature has a coat that drinks up the light, drawing shadows in around it. Its maw is full of sharp teeth, and a wisp of shadow drips from its writhing tongue.

Mythic Shadow Mastiff (CR 6/MR 2)
XP 2,400
Pathfinder Roleplaying Game Bestiary 3
NE Medium outsider (evil, extraplanar, mythic)
Init +8MF; Senses darkvision 60 ft.; Perception +10


AC 20, touch 12, flat-footed 18 (+2 Dex, +8 natural)
hp 71 (6d10+38)
Fort +8, Ref +7, Will +5
Defensive Abilities DR 5/epic; shadow blend, shadowstuffMA


Speed 50 ft.; shadow doorMA
Melee bite +11 (1d8+7 plus trip), tail slap +6 (1d6+3)
Special Attacks bayMA, mythic power (2/day, surge +1d6)


Str 21, Dex 15, Con 17, Int 4, Wis 12, Cha 13
Base Atk +6; CMB +11; CMD 23 (27 vs. trip)
Feats Improved InitiativeMF, Iron Will, Power Attack
Skills Perception +10, Stealth +11, Survival +10
Languages Common (can’t speak)


Environment any
Organization solitary, pair, or pack (1–2 mythic shadow mastiffs and 3–8 shadow mastiffs)
Treasure none

Special Abilities

Bay (Su) When a mythic shadow mastiff howls or barks, all creatures within a 300-foot spread except evil outsiders must succeed at a DC 18 Will save or become panicked for 1d4+2 rounds. A creature that successfully saves cannot be affected by the same mastiff’s bay for 24 hours. The mastiff can spend one use of its mythic power to again affect creatures that previously made their saves. This is a sonic, mind-affecting fear effect. The save DC is Charisma- based and gains a bonus equal to the mastiff’s mythic rank.

Shadow Blend (Su) In any condition of illumination other than full daylight, a shadow mastiff disappears into the shadows, giving it concealment (50% miss chance). Artificial illumination, even a light or continual flame spell, does not negate this ability; a daylight spell, however, does. A shadow mastiff can suspend or resume this ability as a free action.

Shadow Door (Su) Three times per day as a move action when using its shadow blend ability, a mythic shadow mastiff can transport itself to another area with illumination of less than full daylight, as per dimension door (caster level 6th). The mastiff can then spend one use of its mythic power when doing so to retain the ability to take actions until its next turn.

Shadowstuff (Su) A mythic shadow mastiff can spend one use of its mythic power as an immediate action to become incorporeal for 6 rounds. It must be in an area of less than full daylight to use this ability. The mastiff deals the same base damage with its attacks plus 1d6 cold damage, but it gains no bonuses from Strength. Additionally, it loses its natural armor bonus to AC and instead gains a deflection bonus equal to its Charisma modifier plus its mythic rank (typically, AC 15, touch 15, flat-footed 13). The mastiff can return to corporeal form as a free action.

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