If you want mouseover to be prioritized:
Code:
#showtooltip Fire Blast
/castsequence [@mouseover,harm,nodead][] reset=0.2 0, Ice Lance
/castsequence [@mouseover,harm,nodead][] reset=0.1 Fire Blast
/run UIErrorsFrame:Clear()
If you want mouseover to be used only if you don't have target or target can not be attacked:
Code:
#showtooltip Fire Blast
/castsequence [harm,nodead][@mouseover,harm,nodead] reset=0.2 0, Ice Lance
/castsequence [harm,nodead][@mouseover,harm,nodead] reset=0.1 Fire Blast
/run UIErrorsFrame:Clear()