Did a quick wiki dive to figure out which weapons would be able to use Ultimate Arts, assuming Rayman is correct. It ends up being…
- Poison Tooth Dagger / Sanguine (Light Bladed Throw, Whirlwind, Sword Draw: Flash Strike)
- Sunken Sword (Whirlwind, Sword Draw: Flash Strike, Rising Tide)
- Commodore Kai’s Sabre (Whirlwind, Sword Draw: Flash Strike)
- Silent Blades (Primal Swipe)
…aaaand that’s all. Overall, Warriors can use five distinct Ultimate Arts, four if the Sunken Sword is out of the equation.