Ushi Ushi no Mi, Model Bison

Profile

A Zoan-class Devil Fruit eaten by Dalton. Named on-page in Ch. 136 by Wapol — “AAAAH! There it is! The Ox-Ox Fruit! Bison Model!!!” (p. 13). Lets the user transform into a hybrid bison-humanoid form (and presumably full-animal form, forward-canon). First on-page Zoan-class Devil Fruit in the series, and the chapter in which the word Zoan is spoken on-page for the first time (“That’s the devil fruit of the Zoan family”, p. 14).

Demonstrated combat profile in Ch. 136:

• Speed boost — Dalton’s bison-hybrid form dodges all of Wapol’s men’s bullets (SWIP SWIP SWIP SWIP, p. 13). Bystanders: “We can’t hit him!! He’s too fast!!!”
• Striking power — single hammer-fist counter-strike (FIDDLE BAM!!!, p. 13) clearly devastates. Bystanders canonize the power: “What power!!! Like a hurricane!!!” (p. 14).
• Hybrid form silhouette — humanoid-bison: large curved horns, bovine snout, hooved feet (KLOP KLOP, p. 13), still bipedal, retains the two sheathed swords on the back of the armor.

User chain

Named techniques

(No named techniques on-page as of Ch. 136. The fruit is demonstrated only in its hybrid-form-speed-and-strike baseline mode.)

Awakening

(No awakening on-page as of Ch. 136.)

Power limits & weaknesses

• Universal sea/water weakness (Devil Fruit rule).
• Tactical weakness — Dalton can’t fight at full force when his own people are caught in the crossfire (Ch. 136 p. 17 — Chess’s arrow lands when the villagers arrive in Dalton’s line of fire). This is the Three Officers know your weaknesses doctrine in action — the weakness is not the fruit but the user’s moral constraint.