Requested WoW macro

I need a macro that will combine two skills into a cast sequence in a very specific way.

The Troll racial Berserk acts as a baby Bloodlust, and I want to find a way to work it seamlessly into my rotation so that, when it’s available, I use it. To that end, I think what I’m looking for is a macro that:

1.) Acts as a castsequence starting with Berserk, and ending with one of my heals.

which

2.) Does not ever show Berserk on the skill bar. I want it hidden on the skillbar, so that I only ever see the heal skill’s icon.

Essentially, if Berserk is off cooldown, I want it to cast it on me, then cast the heal on my target — if it is ON cooldown, I want the macro to just go straight to casting the heal on the target. But I never ever want to see Berserk on the skillbar.