Nostalrius Begins - Quality wow vanilla realm (1.12)

I want to write a rather simple macro for my shaman, yet I can't seem to get it right. It should cast if pressed the highest rank Earth Shock and if i additionally press shift it should cast Earth Shock rank 1.
I guess it must be something like:

/cast [modifier:shift]Earth Shock(rank 1); Earth Shock

yet this doesnt work.

Macro modifiers don't exist in vanilla.
You need something like

Code: Select all

/script if IsShiftKeyDown() then CastSpellByName("Earth Shock(Rank 1)") else CastSpellByName("Earth Shock") end