Similar to the above moveset, but with Hurricane (110 Power/65 Energy) to grant a secondary STAB move. This moveset can be a tiny bit more flexible in some situations, but it's still walled by Steel types, making it a note-worthy but generally less useful moveset option.

Dragon Breath is just objectively great. It has 4 DPT (Damage Per Turn) and 3 EPT (Energy Per Turn), which makes it threatening in-and-of itself while also charging up Dragon Claw (50 Power/35 Energy) fast. Add to this Dragonite's high attack stat and Dragon type's great neutral coverage, and you have a Pokemon that is dangerous to face without a resistance and a super-effective counter. Outrage (110 Power/60 Energy) is frequently overlooked in favor of Dragon Claw's utility, but it actually has higher damage-per energy in PVP, allowing it to bait shields and give Dragonite strong and accessible power when the opponent runs out of shields. An even more extreme example of this would be Draco Meteor (150 Power/65 Energy), which has even stronger damage-per-energy, but self-debuffs the Attack stat by 2 stages after being fired, making it really only useful as a closer move.

Great League: 2 / 5

Dragonite is, without a doubt, one of the defining Pokemon of the PVP metagame as a whole (if you're fortunate enough to have one with the right moveset). This is due to its fantastic mix of typing, stats, and moveset coming together to make a Pokemon that can hit the most of the metagame hard based on its own merits rather acting as a counter to specific threats. Despite the restrictions on its CP, the Great League has Dragonite as one of its prime shield-killers, coming in and hitting hard with narrowly avoided attacks. It has issues with a few big-name Pokemon, in particular not liking to meet Steel types, but it's definitely solid and worth using.

Ultra League: 3.5 / 5

Really, the exact same merits that allowed Dragonite to do well in the Great League allow it to absolutely excel in the Ultra League, where its CP isn't anywhere near as held back.

Master League: 4 / 5

At full strength, Dragonite takes all of the aforementioned advantages and compounds them. Much could be said here, but the long and short of it is this: if you play the Master League and have a legacy Dragonite, then don't hesitate to raise it. While it doesn't perform that well against Dialga, it's still definitely a top threat.