How would i make a macro for casting "Hysteria" on the focus?

i want a macro for casting hysteria on the focus, how would i do that?

/cast [target=focus] Hysteria
Or something close I think. :p

thanks it worked :)

My big question: Does it stack?

It dose.
Zero and I hijacked his thread and did some experiments with it.
Blood Furnace: DKs Take Zero Skill