Board Thread:Questions and Answers/@comment-27095444-20151111170004/@comment-25523402-20151111180958

Yes, Samba and Sumo, at an extant, are the only ones pretty much worth touching.

Only buy Sumo if you have unlocked his true form; his basic forms aren't worth using because it's a regular meatshield (and since we have Catburger and Pumpcat as meatshields, it's pointless to buy Sumo)

And on to Sumo's true form; he becomes one of the fastest (viable) meatshields (or the fastest, beating Crazed Tank) However, his cost may prove problematic.