Simple Vanguard Wolf, build is below.
For attacks per minute it follows the line 1.666 x + 114.8, where x is the alacrity.
18/2 vanguard wolf w/ Spite, the Fractured Shards
At x = 60% alacrity (vangaurd + blinding speed + haste boost) get 214.8 attacks/minute + 18 more from shattering strikes/opportunity attack = 232.8 attacks/minute
At 1.8 TWF + 104% total double strike = 2.84 hits per attack
661 hits/minute = 11 hits/second (w/balanced attacks, this is also permastun)
Miss on 1 > 10.5 hits/second (elf premier race)
1k average main hand hit (guestimate) + 800 sneak (guestimate same as Sym) + 1.4k bleed ~= 33.5k boss dps
23% doublestrike item
9% doublestrike insightful item
9% Past life feats
8% shield mastery
5% Alchemical (fabricator's)
3% Hail of blows twist
7% Legendary Shield Mastery
15% double strike silent avenger
5% main hand PTWF
8% effective off hand PTWF
2%SW filigree
3% kensai cores
5% VKF core 3
Kensai Core 5, Vangaurd Core 5, VKF Core 3, Elf cores + precision feat, max strength
If you don't feel the need for 30k dps, take fighter levels away and add more druid for class flavor.