How to kill Destroyers effectively?

You can pretty much forget about SF-heroway. (Searing Flames) Despite their resistance to fire and resistance to burning, ive always managed to defeat any and all destroyers I have come accross!

Its damn hard work when your stubborn and stick to using a fire build, but it is do-able! I tend to bring myself (an SF ele), Vekk (SF), 3 monks (1 hero), Olias (MM) and 2 warriors and ive always managed!

Ive been down to 60dp a few times while doing it, but ive done it!

My advice is that if your a fire ele and you insist on using fire, then try bringing winter (or what ever u call the ranger skill to change fire dmg into cold). You could also just go as a water or lightning ele which probably makes more sense!

Also focus on which destroyer to kill first as you would any group! Remove the degen Necros first, then he warriors and then the rangers from my experience!

My last advice is use any pve only skills that do damage to Destroyers and increase your Drawf rank as best you can and equip the title to do them extra damage and heal you.

I cant speak for other professions, but some observations I have made are...

1) The Norn are very good at doing them damage in bear form.
2) When you use raven form (during that dungeon or after aquiring if possible), it does alot of damage to destroyers.

Even during that Asuran quest which throughs wave, after wave, after wave of destroyers at you I still managed. Its not hard, but it can be done.

Anything is do-able! I can remember a time when I felt the mersaat were impossible to kill and I laugh at that now! Anything in game soon becomes easier!

This is what I run vs Destroyers

ME - A Echo spoil victor nec with mark of pain
Gwen - Fast casting fire nuker
Vekk - Earth Aoe with unsteady ground elite
Xandra - Defensive spirit spammer for general support

and mhenlo lina zho talon for henchy slots.

I had no problem at all vs them, they fall like flies. Spoil Victor bakes em nukers eat em. People always forget about [skill]spoil victor[/skill] im glad you mentioned it. I put that on my necro hero and rarely have problems, people always think about [skill]spiteful spirit[/skill] when I find that they don't quite use it properly and enemies rarely clump up enough for it to really use the aoe damage part.

Well, I also was surprised when I recognised, that destroyers have heavy resistances vs. fire and earth...
My both Zhed and Sousuke are equipped for fire (not with SF but Savanna Heat, explosion and so on). After I realized that, I equipped the Charr (Beastmaster, and works very well ) with Winter and the Problem was gone. Its funny how people keep saying that... even though Winter is bugged and won't effect a Fire Elementalists damage in the slightest. Maybe the Beastmaster is just exceptionally good

You know what else works great? Snow Storm, the Dwarf skill. Destroyers are still pretty stupid and will bunch up. Hit them with Snow Storm and watch em fall. Yup, that and Alkar's Acid work great. I did Glint's challenge earlier with H/H and managed to finish it with Sab's triple necro build + Lina and Mhenlo, with Herta for wards and Zho for interrupts. No-one died, probably too much healing really if anything.

Me- running dual attune Shellshock / Lightning Javelin ( for spammable interrupt) / Orb and hammer + aforementioned PVE skills. Only real issue was getting no return on energy costs for the PVE skills meant I had to watch my use of LH.

Only got one core throughout the whole challenge mission and that was from the chest....previously I got 3-4 on the first wave alone.