Hi suiciedesspyder
have to say i love using the lazy macros myself where i can..i havn't had a go yet at the priest ( will be doing in the future)..so i cannot try this out yet..but have you tried changing the 0.5 back down to 0.3 ...i know its hardly a difference but during all my experiments the higher numbers seemed to mess with the macros a bit..and have you just tried putting devouring plague as a cast macro at the bottom.
Code:
/targetenemy [noharm]
/cast [noform] !Shadowform
/castsequence reset=0.3 0,1,2,Shadow Word: Death
/castsequence reset=0.3 0,1,Halo
/castsequence reset=0.3 0,Shadowfiend
/castsequence [nochanneling] reset=target/19 Shadow Word: Pain,Vampiric Touch,Mind Flay,Mind Flay,Mind Flay
/castsequence Mind Blast,Mind Blast,Mind Blast
/cast Devouring Plague
or tried replacing one of the other spells like halo and swap them round..
Code:
/targetenemy [noharm]
/cast [noform] !Shadowform
/castsequence [combat] reset=0.5 0,1,2,Shadow Word: Death
/castsequence [combat] reset=0.5 0,1,devouring plague
/castsequence [combat] reset=0.5 0,Shadowfiend
/castsequence [nochanneling] reset=target/19 Shadow Word: Pain,Vampiric Touch,Mind Flay,Mind Flay,Mind Flay
/castsequence Mind Blast,Mind Blast,Mind Blast
/cast halo
like i say just a thought as i do not play a priest yet but thats some of things i would try and a you could always setup a second macro with say just the mindblast castsequence on another standalone macro..
At the minute i am starting to have a go through most of the classes..slowly..and as i level putting all the macros i use up to level 90...
most times you never find any macros at say level 20 or 30 that you might want..or a bit lazy to put together so thats kind of my goal..
Started a mage is now level 50...
My blog is here
http://macromanx.blogspot.co.uk/
And i am also streaming everynow and then here.. http://www.twitch.tv/macromanx/old
maybe i'll try a priest next :P
recorded a bit earlier 
http://www.twitch.tv/macromanx/b/419591763
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