Penance Macro Help

[Jynks]

Hi there... still trying to get wow back into the state I had it before my break. I thought all the macros saved

What I would like is a penance macro that....

• When mousing over it casts at teh mouseover target. Regardless if it is friend or foe (as it can dmg and heal)
• If there is no mouseover target but there is a selected target, it cast at that.

This is what I tried but it doesn't work....

/cast [target=mouseover] Penance; [target, nodead] Penance

Any ideas?