Suicune

The legendary that lives in the shadow of Vaporeon, who lives in the shadow of Milotic, who in turn lives in the shadow of Gyarados, who lives in the whale-sized shadow of Kyogre… That says it all about the unfortunate fate of Suicune. Niantic introduced Waterfall and Surf with Gen 3’s release, while giving Suicune Snarl, and removing its 1/15 chance at a STAB fast move. What’s up with that? At least they gave it Ice Beam later, but that still leaves it with virtually nothing.

Best PvE Offensive Moveset

• Snarl is Suicune's superior fast move thanks to its improved energy gains.

• Extrasensory is right behind it, though it offers different type coverage. 

• Hidden Power is generally an inferior move. Water is best, while Ground and Rock are next best.

• Hydro Pump is optimal for its raw power, while Bubble Beam has more flexibility with 3 bars.

• Water Pulse has weak DPS and is laggy to boot.

• Scald is the same story.

• Ice Beam may have given Suicune a tiny breath of life on defense, but since Suicune can't be posted in gyms, it's entirely outclassed. Even if paired with Hidden Power Ice, it's still painfully bad.

Snarl is generally more preferable due to its significantly better energy gains, though Ice Fang can provide useful coverage against common typings.

Scald offers good damage at a moderate cost, and its high chance of debuffing Attack synergizes well with Suicune's high bulk. Ice Beam covers Grass- and Dragon-type Pokemon. Bubble Beam is Suicune's cheapest Charged Attack and offers a guaranteed Attack debuff, but its damage output is beyond pitiful and is just a much worse move than Scald. Hydro Pump is too expensive and Water Pulse is just horrid.