Team Arenas are often easy way to test Some ideas that could be ovule for bigger build for GvG or Tombs.
Of course this is not only thing that can be done there. Many guilds before inviting someone new, goes with him on TA to see how good is he.
And last but not least. You can go there just to have fun playing with your friends. :)
I'll show here builds that i use on TA and if you have your own builds and want to show them mail me.


1. Winter build:
  - (Warrior/??, Elementalist/Necromancer, Ranger/Necromancer, Monk/Necromancer)

2. Scourge build:
  - (Warrior/??, Necromancer/Monk, Necromancer/??, Monk/Necromancer)

3. Obsidian Spike build:
  - (Elementalist/Ranger, Elementalist/Ranger, Monk/Necromancer, Monk/Necromancer)