Let's look at this guy:
Critical Strikes: 13 (11+2)
Dagger Mastery: 12 (11+1)
Deadly Arts: 4 (3+1)
- Locusts' Fury [Elite] (Critical Strikes)
- Dash (Assassin None)
- Flurry (Warrior other)
- "Fear Me!" (Tactics)
- Disrupting Stab (Dagger Mastery)
- Entangling Asp (Deadly Arts)
- Spirit Walk (--for fast escapes back to homebase)
- Resurrection Signet ()
He's already pretty good at spamming Fear Me with Locus's Fury and Flurry, and has a little bit of disruption mixed in. But let's say there's a couple of friendly necros spamming Dark Fury and both of the Orders.
With Dark Fury active, our assassin can use "Fear Me" every time he makes a dual hit. Every 2/3s of a second, he has a 44% chance dual striking and therefore getting the 4 adrenline for "Fear Me"--draining 3 energy from all nearby foes. So long as he isn't blinded or dealing with a stance, "Fear Me" will (at most) be charged every 1.32 seconds.
With Order of Pain and Order of Vampire active, the assassin is triggering orders every 2/3s of a second, 44% of the time with a dual strike doubling his damage. If the orders necro can keep both orders up constantly (not hard so long as he's getting outside heals and soulreaping away from enemy mesmers), a single assassin will be dealing an insane DPS. (and a little bit of healing from Order of the Vampire)
And so, the HA build I'd like to try to run during the March beta:
4 As/War "Fear Me" spammers, each on a different target.
1 N/E with corpse control, rigor, enchant removal, gale, and windborn
1 N/Mo Mayrt/Dark Fury with other misc heals. Only need a Blood of 6 to make Dark Fury work.
1 N/Mo Orders Necro, with back up healing
1 Rit/Mo with Pain and Healing sprits to set up a base for the Necros to hide in and the Assassins to escape back to with Spirit Walk.