Death Knight Frost Macro

Frost Death Knight Death Coil #showtooltip Death Coil

/cast [button:2, target=player] Death Coil; Death Coil
Casts a standard Death Coil on left click. Pop Lichborne and right click to heal yourself.

Or you can make it one button since I found I often didn't use Death Coil as an offensive spell.

#showtooltip Death Coil
/cast Lichborne
/cast [target=player] Death Coil

Shows Death Coil when you mouseover it, and gives you a free heal every 3 minutes.