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    Ippondatara 一本だたら

    Large fey (kami), chaotic neutral

    Armor Class 15 (natural armor)

    Hit Points 68 (8d10 + 24)

    Speed 25 ft. (hops only; see One-Legged Hop)

    STR 17 (+3) · DEX 11 (+0) · CON 16 (+3) · INT 10 (+0) · WIS 14 (+2) · CHA 12 (+1)

    Saving Throws Str +5, Con +5, Wis +4

    Skills Athletics +5, Perception +4, Stealth +2

    Damage Vulnerabilities cold

    Damage Resistances bludgeoning, piercing, and slashing from non-magical attacks; fire

    Condition Immunities prone

    Senses darkvision 60 ft., passive Perception 14

    Languages Common, Sylvan

    Challenge 3 (700 XP)

    Traits

    All-Seeing Eye. Ippondatara has advantage on Wisdom (Perception) checks that rely on sight and on saving throws against being blinded.

    Forge-Born. The kami is resistant to fire damage and ignores the adverse effects of extreme heat (DMG p. 110/ 68).

    One-Legged Hop. The kami can’t take the Dash action, but standing jumps up to 20 feet horizontally or 10 feet vertically don’t cost it movement. Opportunity attacks against it are made with disadvantage immediately after it jumps.

    Actions

    Multiattack. Ippondatara makes one Hammer attack and one Stamping Kick.

    Smith’s Hammer. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage.

    Stamping Kick. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage, and the target must succeed on a DC 13 Strength saving throw or be knocked prone.

    Heavy Hop (Recharge 5–6). The kami jumps up and crashes down at a spot it can see within 20 feet. Each creature within 10 feet of that spot must make a DC 13 Dexterity saving throw, taking 14 (4d6) bludgeoning damage and falling prone on a failed save, or half as much damage and no prone condition on a success. The hop doesn’t provoke opportunity attacks.

    Bonus Actions

    Hammer Spark (3/Day). The kami’s hammer flares with forge heat. Until the end of its turn, its next Hammer attack deals an extra 5 (1d10) fire damage.

    Reactions

    Single-Eyed Glare. When a creature the kami can see within 30 feet makes an attack roll against it, the kami imposes disadvantage on the roll (no action) if the creature is frightened.

    Lore

    A one-legged, one-eyed blacksmith spirit who startles passersby with the crash of his hammer.

    Ippondatara (本踏鞴) translates literally as “forge press.” The yokai’s very name ties its essence to the grueling craft of black­smithing, while its chosen haunts—high mountain passes once lined with ore pits and crude smelters—set the scene. There the legend of a one-legged, one-eyed spirit that appears only once a year first took shape.

    The classic description stresses two anatomical anomalies: Ippondatara has a single massive leg and one huge eye. Folklore paints them as occupational injuries—an eye seared blind from staring into a white-hot furnace, a leg wasted by decades of stamping the bellows pedal. The creature moves in great hops and lumbering tumbles; every thrust shakes the ground, and in snow or wet earth it leaves the distinctive print of a single foot, the surest sign that the yokai is near. Almost always it carries an enormous smith’s hammer, sometimes rimmed in flame.

    From Yokai Bestiary 5E, Book Two, p. 42 · Fern Flower Press