Tangela

Not only is Tangela a very threatening offensive Pokemon in the tier, it's also one of the better defensive stalwarts available, giving it a nice pedestal to stand on over many other similar choices. Offensively, Tangela and Bellossom can be considered rivals somewhat; while Tangela boasts slightly higher Speed and power and much better physical bulk to make end-game sweeping easier, Bellossom has much, much better special bulk to take better advantage of its typing against major metagame threats like Huntail and is therefore easier to fit on teams. Defensively, Tangela has few rivals when it comes to physical bulk; it's almost unmatched in its ability to wall Rock-types (outside of not resisting Explosion), and it easily checks the likes of other huge physical threats like Hitmonchan and Raticate. Regardless of whether Tangela is running an offensive or defensive set, Sleep Powder will be its ace in the hole, crippling many Pokemon in the tier. All in all, Tangela holds a very secure spot as one of the top Pokemon in the metagame.