Advice

[Dakkaguns]

Starting red 99 Saturday. A friend said he quit a while ago and offered me his level 24 sham. When I stopped playing classic they had not released vellious. I maines a cleric, necromancer and shaman. Questions are as follows:

1. Is shammy gimped in Vellious? (Should I just roll something else)
2. Is there a class that is sought after for end game guild and group pvp
3. Any words to the wise?

Thanks for your time
See you guys tonight