Totemist 5 can bind Sphinx Claws to their Hands Chakra to get pounce with natural attacks. This is also available through two feats: Shape Soulmeld (Sphinx Claws) at 3rd level and Open Lesser Chakra (Hands) at 6th. OLC has a 6th level requirement.
EDIT: Also, I think the DC 40 Tumble for 10' step is CAdv or CWar.