Tanks and Walls

[Legacy]

I've recently been looking at getting into the whole competitive battling thing. But I'm not sure what the purpose of "Walls" and "Tanks" are. Can anyone help clarify it?

 

[Ichida]

Most walls are high-defensive Pokemon who use indirect methods to win, usually involving status ailments. Some walls are also built for other purposes, such as Blissey's use as a cleric via moves like Aromatherapy. Other walls include Snorlax, Umbreon, Bastiodon, etc.

 

[Pazuzu]

Such things are better fitting in the Strategies and Movesets forum, which is located in the same category as the D/P forum.
I'll move it there for you.

~moved~

 

[Angelic Diablo]

I believe Walls are the pokemon built for absorbing attacks and are mainly used to stall (drain opponents PP) such as Blissey

Tanks on the other hand are pokemon that take a lot of damage, but can also dish some out, eg Snorlax