I fail to see the point of Choice Scarf Ononokusu when you have the option of Choice Scarf Garchomp. While you lose ~40 Attack points, Garchomp actually has a good secondary STAB to work with and is immune to Thunder Wave. Garchomp also has the advantage of out-speeding base 100 Pokemon with +1 Speed (Dragon Dance Salamence, Choice Scarf Jirachi).
I can see resist berry (Haban, Yache) set-up (Dragon Dance, Swords Dance) sets working well on Ononokusu due to its low number of weaknesses and lack of a 4x Ice weakness. It is mainly just its base Speed that prevents it from succeeding; Salamence and Garchomp typically perform Dragon Dance and Swords Dance sets better, respectively.
I can see resist berry (Haban, Yache) set-up (Dragon Dance, Swords Dance) sets working well on Ononokusu due to its low number of weaknesses and lack of a 4x Ice weakness. It is mainly just its base Speed that prevents it from succeeding; Salamence and Garchomp typically perform Dragon Dance and Swords Dance sets better, respectively.












