[STUN] Toxxic Onyx – Warrior
Thief Build WvWvW/PvE
Read the forums. There are literally tons of posts. Lowell’s ultimate pvp guide is dated, but good: http://www.guildwars2guru.com/topic/45902-lowells-ultimate-spvp-thief-guide-wip/ and it has a ton of builds in it.
I’d say just go with a S/D or S/P setup and see how it goes.