I don't think there is a good scepter build for wvw anymore. At one time it could work as a dueling type build built around burst damage but no longer. For groups larger than 15 you are probably hurting your own side if you don't use staff on ele. Maybe a condi clearing tempest would be useful, but I doubt it would be better than a damage dealing staff user. The damage from weaver is better than all other versions of staff ele. Weaver staff eles are still needed and wanted in wvw zergs, tho behind scourge/firebrand/scrapper. What I do is use all marauder gear with scholar runes and berserk+valk trinkets. Some people like arcane trait and feel with the damage buff from boons they come out ahead. I prefer fire and air as the other two traits. The choices within those trait lines are fairly obvious. If I am having trouble staying alive I will switch air for earth and take stone heart. This results in a two thirds reduction in power damage at the cost of a 30% reduction in your own power. You can dual attune to earth and fire and get the stone heart buff and still do damage with aoes, but the earth autoattack might as well be zero. Whenever possible I go back to fire and air trait lines. If want to be very tanky take melandru runes and stack condi duration reduction. Use the utility skill that reduces by 20%, use food for the same amount and with stone heart on top of that you should very rarely die. It should take a squad wipe to kill you. But your damage isn't very good like this. For utility I usually take the twist of fate, which is better than you think at first, mist form, and the barrier skill. Most staff eles use FGS for elite but I like the 20% damage reduction in earth from the weaver elite. When your second attunement is air and you take the air traitline your auto damage is highest. That is where most of your damage comes from. For 1v1 I still like d/d best even tho sword weaver is supposed to be the best at that. Maybe I just don't know sword weaver well enough. For havoc groups I like d/d/wh tempest. But for more than 15 people I don't see any reason to use anything other than staff weaver, preferably glass cannon build.