After extensive testing (Random 4v4) I'm posting a very awesome E/R build that really surprised me for it's capability and dominating gameplay. Be it ranger, warrior, mesmer, or necro, this build doesn't fear facing them.
Air Magic 10
Energy Storage 13
Wilderness Survival 11
Whirlwind
Barbed Trap
Flame Trap
Troll Unguent
Ether Prodigy{E}
Blinding Flash
Gale
Rez Sig
Let me explain. Troll Unguent at +8 counters degens pretty well usually. There is little fear of physical interrupts because blinding flash lasts 8 seconds and is spammable thanks to Ether Prodigy. If a ranger or warrior is attacking you, Blinding Flash and lay a trap at his feet while he misses. If someone is self removing conditions I usually gale them first followed by blind then a trap can be set still under them.
The degen you get with this build is fatal if the target stands in one spot and doesn't move (common), they will die after about 4 traps. If they try to run, Gale knocks target down long enough to trap their feet and interrupts signets and healing. Cry of Frustration, which is is a serious weakness as it interrupts the self healing, is easily prevented by using gale first.
I'm lacking skill points at the moment to test out other E/R trapper builds using Spiked trap as the Elite. 4v4 at the moment is pathetic. People quit every game seems like. Once I delete a char I can make a PvP but this was made with a PvE so it may not have the maximum energy and stuff.
E/R Trapper
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