SoD - Macro for rune ability if known else non rune ability

Hey Elvenbane, if you don’t mind, could I please trouble you to write me a macro that would do something like this:

#showtooltip Charge
/cast [noknown:warbringer] Battle Stance
/cast Charge

This way I don’t have to swap my action bars every time I swap my warbringer rune on or off. Thank you!!!