What should I let my Chesnaught forget?

Question

Alright, I need a second, third, forth or fifth opinion. So I bread myself a Chespin and EV-trained it up. It's now at Lv.50.

This is the current set for it:

Chesnaught @ Leftovers
Trait: Overgrow
EVs: 252 HP / 252 Attack / 4 Defense
Adamant Nature
- Leech Seed
- Bulk Up
- Spiky Shield
- Hammer Arm

And I want to teach it a second Attacking move, which is Seed Bomb. But I don't know what I should let him forget.

Answer 1

You should get rid of Bulk Up. Also, if you would like a different move set, I'll give you one. I feel like this one is a little better than an attacking Chesnaught.
Chesnaught @ Rocky Helmet / Leftovers
Ability: Bulletproof
EVs: 252 HP / 252 Def / 4 Spe
Impish Nature
- Leech Seed
- Synthesis
- Spiky Shield
- Hammer Arm (When Pokémon Omega Ruby and Alpha Sapphire come out, use Drain Punch.)
I hope I helped!