Let's talk about Goodra!
I have some predicted stats that I looked up.
HP: 80
Attack: 95
Defense: 80
Special Attack:
115
Special Defense:
140
Speed: 90
Abilities:
Hydration
Sap Sipper
Gooey (Hidden Ability) (contact moves makes Pokemon -1 Speed)
This is a tank, it isn't arguable. Listing the ups and downs:
+ Special Defense is through the roof (higher than Blissey at 135!)
+ Above average Special Attack, viable enough to run a bulky attacker set
+ Two amazing abilities in Hydration and Gooey. Hydration is useful with Rain to take status like a boss, which is a godsend for a bulky Pokemon, alongside it's many Water-type attacks such as Hydro Pump. Gooey lets it function as an emergency stopper to physical sweepers, lowering their Speed. It can also use this to force switches for a Choice Specs set.
+ Other stats aren't that bad.
- Low defense and HP
- Speed is 'meh', but it's stats make it lean towards tanking roles, which somewhat offsets it.
Evidence:
http://pokemondb.net/pokedex/goodra (stats)
http://www.serebii.net/pokedex-xy/706.shtml (abilities)