Drow Aberration Druid [PF/3.5]

[Serpentine]

My housemate's running a one-off 5th level Evil drow Pathfinder game, and I'm thinking of playing an aberration-focussed Druid. I'm thinking - if I can work it out with him - that she'll be a sort of emissary to aberration communities. This will need to include good defenses against them, the ability to negotiate with them, and the ability to kill them well if the need arises. She is not gonna be especially interested in most other aspects of nature, particularly those above-ground.

What options do I have? Homebrew will be considered.

[Circle of Life]

If your DM is willing to fudge the requirements slightly, you can get Aberration Wildshape. Otherwise, you'd normally have to wait until 6th.

If you bring him cookies and promise not to do terrible things with it, he might even let you get Assume Supernatural Ability. Failing that, bring up Metamorphic Transfer (http://www.d20srd.org/srd/psionic/psionicFeats.htm#metamorphicTransfer). It's a little saner, but obviously made for manifesters. Also normally requires a minimum level of 6th, but that's what the cookies are for.

[Serpentine]

Those could be handy.
If I can't (or it's too much effort to) homebrew an Aberration Druid, and I can get the ooze bits replaced with aberration, the Pathfinder Cave Druid (http://www.d20pfsrd.com/classes/core-classes/druid/archetypes/paizo---druid-archetypes/cave-druid) could be my best basic bet.
What are my feat and spell and stuff choice options, more generally, though?

edit: Wellup, my DM's given me permission to make my own class for the game, so lets get some ideas (I've resurrected my Variant Druid thread here (http://www.giantitp.com/forums/showthread.php?t=171732)).