Wow, no Banana Dino mentions? Guess I'll contribute.
LeafNanners
Tropius (M) @ Lum Berry
Trait: Harvest
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Dragon Dance
- Roost/Rest/Earthquake
- Natural Gift
- Bullet Seed/Leaf Blade
I've had success in using this set in lower tiers. The main aim with lum berry natural gift is to gain a STAB base 80 physical flying type attack for Tropius to use, preferred over aerial ace, air cutter, air slash, and fly. In conjunction with dragon dance, Tropius acts as a set up sweeper. Rest can be used in conjunction with lum, but that puts more pressure ob the harvest ability to restore the lum for future use, so roost is a more viable option. Leaf blade or bullet seed for grass type STAB. EQ for coverage option.
I'd also like to point out that this set can also be adapted into a bulky subseed Tropius build as well, with natural cure, leech seed, rest + lum/chesto, and/or subprotect for stall shenanigans, though honestly Tropius sure needs a huge buff like a megastone or evo rather than a 20 bp berry boost.