[Elly]

Plant Dinosaur

Venusaur @ Leftovers
Ability: Overgrow
Nature: Calm
EVs: 252 HP / 52 Def / 56 SpAtk / 148 SpDef
Energy Ball/Sludge Bomb
Sleep Powder
Leech Seed
Stun Spore/Sludge Bomb

The double status super awesome Venusaur. He survives a Specsmence Draco Meteor to get a Sleep Powder in. Sludge Bomb is an option so you don't get walled by Grass types. You can potentially use Stun Spore and Sleep Powder along with Leech Seed to cripple two Pokemon and set another up with some free health gain.

Venusaur @ Choice Specs
Ability: Overgrow
Nature: Modest
EVs: 66 HP / 252 SpAtk / 192 Spd
Leaf Storm
Hidden Power [Ice]/Sleep Powder
Energy Ball
Sludge Bomb

This guy hits hard with Leaf Storm. Your other attacks clean up late game when you don't want to be switching as much. Sleep Powder is a option over HP Ice is you don't want to breed for it.

NOTE: In both sets Grass Knot is viable over Energy Ball for the extra power against some things.