What is a good LC moveset for Phantump?

Question

If you have a good competitive moveset for Phantump, post an answer below and upvote the best ones.

Be sure to include full set details in your post, e.g. items, abilities, natures and EVs. Some detail, including the intended game mode for your set, is also appreciated. Access the full list of guidelines here.

Phantump Pokédex and learnset for reference.

Answer 1

Phantump King (Phantump) (M) @ Oran Berry
Ability: Harvest
Level: 5
Shiny: Yes
EVs: 196 Def / 116 SpA / 196 SpD
Calm Nature
IVs: 0 Atk
- Substitute
- Protect
- Curse
- Giga Drain

I just got absolutely screwed over by a Phantump in Gen 8 LC, and the user that beat me was kind enough to give me the set, so I thought I'd share it here. Curse and Substitute put dents in your health, but that's what the Oran Berry is for -- and that's where Harvest comes in too. The Phantump I played against was paired with a Vulpix, allowing it to recover its Oran Berry every single time it's consumed. Giga Drain recovers more health, and Phantump is bulky enough to live a neutral hit.

The set can be shut down by a faster Knock Off, Taunt, or high-powered super effective move, but if you catch an opponent by surprise, you'll almost certainly deal a lot of damage, if not outright KO a Pokemon. Even if you don't, you'll probably annoy them to no end.