HP or SpDef on Slowbro?

Question

I'm making a calm mind sweeper set and I don't know what I should do, calm mind would make his special def better anyway if I invested the EVs in HP but I dont know if ill be able to get it off sometimes due to his low speed. Here's my set anyway

Slowbro@ Leftovers
Nature: Modest Ability: Regenerator
252 SpA 252 Hp/SpD 4 Hp/SpD
- Flamethrower
- Scald
- Calm Mind
- Slack off

Answer 1

I'd say go for HP. Calm Mind is already boosting its Special Defense, so you don't need to invest unnecessary EVs into that.

Go for a 252 Special Attack / 200 HP / 56 Special Defense, for both, if you'd like. Alternatively, you could put the 56 in Defense as well, but with its naturally high Defense, I doubt Slowbro needs that.

Answer 2

I would do SpD and give it a nature that boost SpD