Building a Macro, need advanced help!

[GOSYDELIX]

Hello people!

I would like some help with building a macro, And I'm still trying to learning the conditions and other stuff, but I can try to explain what kind of macro I want.

#1 If I'm out of combat, and my target Is dead then cast Mass Ress ( Guild Perk )
#2 If I'm out of combat, and my target Is dead then use Loot-a-Rang
#3 If I'm out of combat, and my target Is Alive and Enemy, then castsequence Icy Touch togheter with Plague Strike
#4 If i'm still in combat, I just want my macro to reset with number #3.
#5 If i'm in combat, holding down shift, then use Health Stone

I hope this isn't too hard to make!
Thanks in advance