This will be my first time working with the Grippli race and Oracles class looking for any build or RP advice. Thanks.
Well, Oracle of Nature allows you to get a Bonded Mount to help overcome your slow movement. I highly recommend reading Channeling the Cosmos, the Oracle guide in the Guide to the Guides.
What kind of caster are you wanting? A fighting type (in that case, go with Ancestors or Metal)? A sneaker (Air)? A battlefield controller (Water)? A blaster (Fire or any of them plus the Blackened curse)?
Looking to make more of a support fighter that can heal after battle or during if completely needed.