I think what atreborn meant was, that he has rather done something like DM->HFB->DE->ToX->HFB which, together with the stuff his team did to keep the opponents busy, wiped the enemy team.
This can actually work pretty decent, but can of course only have good effects if players are crowded together like on the end of the bridge of LT.
Decent healers CAN also ruin the fun on this, but still, if your own team overall gets SOMETHING done and you have high enough crit this will work.
I agree on ToX somehow scaling badly though. DE+DM (maybe RSoX, too if nothing else yet availlable) do buff it, but the gain feels less than on HFB and if it doesnt crit its not worth much for such a long cast.