wall= good def, sp def, and hp
<== Blobs. Low Defense but that enormous HP makes up for it.
<==High HP, Def, SPDef
<== Unbelievably Bulky with Eviolite, access to Recover and Trace
<==Metal Bird is just an awesome Physical wall
<=== HP low but with Eviolite, 195 Defenses make up for it. Heals more with Pain Split cos of Low HP too
<=== Another Low HP one but has awesome defenses
<=== Dear old Durian
<=== Poison Heal Toxic Stall is evil.
<=== Regenerator, or you can just go Mega.
<=== Mega Version is ridiculously bulky
Hope I helped!