Considered of make a damage circulation after got the Glyph of Howling Blast
The single circulation of Howling Blast

　　P1 Howling Blast-Blood Strike*2-Obliterate-Frost Strike

　　P2 Obliterate*3-Frost Strike*N

　   Two problems

　　1.The last several frost strike cannot share the frost fever.
 
      2.rime cannot set into it because of CD time
　　Then through the way of marco

　　Plan1 ：P1 Howling Blast-Blood Strike*2-Obliterate-Frost Strike

　　P2 Howling Blast，Obliterate*2-Frost Strike*N

　
　　Plan2：Macro1----

　　/console Sound_EnableSFX 0

　　/startattack

　　/cast Howling Blast

　　/swapactionbar 1 2

　　/console Sound_EnableSFX 1

　　/script UIErrorsFrame:Clear()

　　/script UIErrorsFrame:Show()

　　Macro2-----

　　/console Sound_EnableSFX 0

　　/startattack

　　/castsequence reset=10 Blood Strike, Blood Strike, Obliterate, Obliterate, Obliterate, Obliterate

　　/swapactionbar 1 2

　　/console Sound_EnableSFX 1

　　/script UIErrorsFrame:Clear()

　　/script UIErrorsFrame:Show()