Weet

[Stevin05]

#showtooltip Wrath
/run local _,_,c,_,_,_,a = UnitBuff("player","Eclipse");local _,_,_,_,_,_,b = GetSpellInfo(48465);if a and not string.find(c,'Orange') then if a-GetTime() < b/1000 then CancelUnitBuff("player","Eclipse") end end;
/cast Wrath

Copy paste that and use it as your wrath cast. At the end of a starfire eclipse, push this right as your last starfire goes off. It will usually proc a wrath eclipse.

make sure when you copy paste to make sure the macro doesn't have any new lines in it.