Ninja Dog (Shinobi World Supplement)
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Medium beast (dog), neutral good
Saving Throws Str +3, Dex +5
Chakra. The ninken has 8 chakra points which they can expend. All chakra points are regained at the end of a long rest.
Variable Size. While usually Medium, ninken range can be as small as Tiny. Regardless of size, all ninken use the same statistics, including hit points.
Unarmed Strike. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage.
Dance of the Dust Cloud (2 Chakra). The ninja dog uses its front paws to create a large cloud of dust. All friendly creatures in a 10 ft. radius can make a Stealth check with advantage as a reaction.
Chakra Fang (2+ Chakra). Melee Spell attack +3 to hit, reach 5 ft., one creature. Hit 6 (2d4 + 1) magical piercing damage. For each chakra point spent above 2, the ninja dog may deal an additional 3 (1d4) damage.
Body Flicker (3 Chakra). The ninken's movement speed doubles, and their movement does not provoke attacks of opportunity.
'Basic Ninjutsu Technique (1 Chakra). As a bonus action, the ninken can move across liquid surfaces as if they were solid. If they are submerged, they rise to the surface of the liquid at a rate of 60 feet per round.
Substitution (3+ Chakra). When the ninken is hit by an attack and would take damage, they decrease the damage by 9 (1d10 + 4) and teleports up to 15 ft. in any direction to an unoccupied space, during which they take the Hide action. A generic object is left in their place and they take any remaining damage from that attack. The ninken can add reduce this damage by an additional 6 (1d10) points per chakra point spent over the initial cost.
Ninja dogs, often called ninken, have a long history of serving as a common shinobi summon. While many ninken are capable of speaking, not all are. Kakashi Hatake is one of the most well known shinobi to ally himself with them, while the Inuzuka clan bases their entire skillset around their ninken.