I created a macro tonight for arena action. It allows me to access three ranks of mana burn with one macro. I adapted it from earlier iterations of similar macros, but I thought I would give folks searching for mana burn macros something to seize upon.
/cast [target=target, harm, modifier:ctrl] Mana Burn(Rank 4); [target=target, harm, modifier:alt] Mana Burn(Rank 1);[target=target,harm] Mana Burn(Rank 7)
I have this macro bound to "B". When I just press "B", it casts max rank MB. Holding Ctrl+B = rank 4, Alt+B = rank 1. This is useful for dragging someone down to zero mana using max rank then keeping them there using lower ranks for greater mana efficiency. Hopes this helps those searching for a solution. Also I recognize that it is probably pretty inelegant but there you have a newb effort
