trying to get the finish him skill

hello,

I play a mesmer, and im trying to aquire ' finish him' skill, i believe i have to dothe dighting tourment and beat bison, can anyone suggest a build for my mesmer, to breeze thru, the tournament, so that i can aquire the skill!!!

Any/Rt
Channeling 12
Communing 12

[Pain][Vampirism][Bloodsong][Shadowsong][Dissonance][Ebon Vanguard Assassin Support][Painful Bond][You Move Like A Dwarf!]

Plant the spirits at the doorway and walk out. Hex your opponent and interrupt vital skills with YMLaD. If you don't need Shadowsong or Dissonance against certain foes, save your energy and don't use them.

I thought they fixed it so that you had to plant your spirits in the doorway as soon as it opened (ie not behind it). Otherwise that build works fine.

Yes, when the door opens, step into the area where the door was and cast all spirits. It won't aggro your foes, and when you step into the arena and start the fight your spirits should be able to attack through the door. May take a couple tries to get the right spot. May not work well against magni, as he'll run right over and kill all the spirits unless you keep him blinded and knocked down.

I just went Me / N:

[Life Transfer][Life Siphon][Vampiric Gaze][You Move Like A Dwarf]

Basically, the degen and Cripple will make it so that melee will never get to you, and a Rit opponent just goes down with the degen and life stealing spam. You can add all sorts of stuff, like [Dark Pact] as well. I went through first time trying this build.