Traits

Charge. If the mushamushi moves at least 20 feet straight toward a target and then immediately hits it with a Horn attack, the target takes an extra 5 ( 2d4 ) slashing damage.

Small Fry. The mushamushi has disadvantage on attack rolls against creatures of its size or smaller.

Agile. When the mushamushi hits a creature with a melee attack, it doesn’t provoke opportunity attacks from that creature for the rest of the turn.

Actions

Multiattack. The mushamushi makes two attacks.

Horn. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 3) piercing damage.

Kama. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 3) slashing damage.

Hook. Ranged Weapon Attack: +5 to hit, range 30 ft, one target more than one size larger than the mushamushi Hit: The mushamushi pulls itself to within 5 feet of the target and remains attached to it until it removes the hook as a bonus action, or until it moves or is moved more than 5 feet from the target If the target is a creature, it can use its action to detach the mushamushi with a successful Strength (Athletics) check against the mushamushi’s save DC

While attached to a creature, the mushamushi moves with the creature, it can climb the creature as it would a normal surface, it can end its turn in the creature’s space, and the creature’s space isn’t considered difficult terrain for the mushamushi

Bonus Actions

Single Combat. As a bonus action, the mushamushi can issue a challenge against a creature that it can see that is at least one size larger than it If the creature can see or hear the mushamushi, the creature must succeed on a Wisdom saving throw or become the mushamushi’s sworn foe for 1 minute The effect ends early if the mushamushi uses this improvement again, attacks a creature other than its sworn foe, or if a creature that isn’t the mushamushi attacks the mushamushi’s sworn foe While a creature is the mushamushi’s sworn foe, it can’t willingly move away from the mushamushi