Dual Wield Tri-Spec

This spec focuses on the scalability of dual wielding and massive proc generation. It also makes particular use of Howling Blast as its main “strike” since HB is independent of weapon damage. For this build, you want a slow mainhand and a fast offhand. The fast offhand maximizes procs, while the slow mainhand maximizes Blood Caked Blade (BCB) proc damage (since offhand procs of BCB are based off mainhand damage).

Benefits brought by a Dual Wield Tri-Spec
The tri-spec offers the same raid utility as a deep frost build. The haste (especially the 5% personal from Imp Icy Talons) is essential to generating as many procs as possible, which is what makes this build viable.8.4.2.
Talents Choices 15/37/19: All of the points in this build are designed around maximized white damage and proc generation.

BCB, Howling Blast, and Killing Machine are absolutely required for a tri-spec to minimize the penalty of reduced strike damage when compared with a two-hander and to maximize procs to compensate.

8.4.3. Rotation
PS = Plague Strike
IT = Icy Touch
BS = Blood Strike
HB = Howling Blast
OB = Obliterate
DC = Death Coil

Note in the “DC” section, continue using Death Coil until you can’t cast anymore, meaning you have less than 40 RP remaining. Also, all Rime procs will be used in the “DC” section to cast HB. However, HBs usage must be primarily restricted to Rime procs.
Rotations are shown over ONE cool-down per rune, with full rotations lasting approximately 10 seconds.

X = HB unless a Rime proc is up, OB if Rime is up
PS -> IT -> BS -> BS -> X -> DC
(There are no death rune talents, so you will simply repeat this cycle)

Glyphs
There are no particular helpful Glyphs for this spec. Mostly the Blood Glyphs fit the Tri-Spec theme quite well, so for Glyphs help for DW Tri-Spec, see Blood Glyphs.

Taken from Elitest jerks DPS compendium

Macro's

#showtooltip Mind Freeze

/cast Mind Freeze/cast Strangulate

#showtooltip Chains of Ice

/cast Chains of Ice

/cast Death Grip

-----------------------------------------------------------------------------------------------
PS -> IT -> BS -> BS -> X -> DC
#show
/castsequence reset=target/Plague Strike, Icy Touch, Blood Strike, Blood Strike
/castsequence Trinket 1, Trinket 2
#show
/cast DeathChill
/cast Howling Blast
#show
/castsequence Icy Touch, Pestilence, Howling Blast
/cast DeathChill

http://www.wowhead.com/?talent=jZG0etuedRho0oZfM0Ixckx0o