Advice on a grappling cohort and a master of many forms like character class

[Rockblood]

I've got two things going on both in different campaigns. First is im in a campaign where the dm has allowed me to later on get a wight as my cohort. I'm wanting to make it into a grappler kind of cohort to really get the full use of its energy drain ability from its slam attack. I had many ideas going on in my head but i have no clue which fits what im wanting. I was going to go with the brawler but not sure now. Any ideas for a good wight grappler cohort? Second is in my campaign i have a player wanting to play a character class like a master of many forms. Problem is im alittle iffy on balance when it comes to classes that dont come from a book. He wants to play like a druid who is all about the wild shape ability and wanting to have it at will starting off. Anything out there that would make him at least half way happy while being balanced?

[Secane]

In my opinion, the best grapplers are still the Tetori monk archetype.

The main reason is that grappling, while powerful can be easily defeated at higher levels with a single casting of Freedom of Movement.

The ability to grapple incorporeal creatures at higher levels is also something nice to have.

----
Maybe you could take away other druid powers to fuel his eariler wildshaping?
(!) Also remember that unlikes 3.5, wildshaping don't allow you to swap out your stats, but gain effects as per spells wildshape uses.

[Rockblood]

thank you that really helps ^^ as for the druid thing theres a 3.5 alterate rule in the players handbook 2 that says you can give up your choice between the animal companion or domain to have your wildshape at will and give a bit limited wildshape with have forms instead of picking animals. not sure if thats fully balanced for pathfinder though.