Originally Posted by 'Monk3yv',index.php?page=Thread&postID=71690#post7 1690
there definitely used to be back in 1.0 etc, but blizz removed those conditions :S Oddly enough Blizz has got something similar in place for some consumables (unless my brain is playing tricks on me again :S ) I believe Healthstones can't be used if ur already at full HP (not sure about potions tho).. but sadly this same thing doesn't apply to commands.
The "help" and "exists" can be used because they only serve to distinguish between a friendly or enemy target and weather that target is dead or not. We can't cast a LB on a friendly target anyway, so it halts the macro before you try to send a cast command through. For us Mboxers these happen to be very useful though, as without them a follow macro such as this one
/follow [target=A,exists] [target=B,exists] (where A is followed until A does not exist)
would become
/follow [target=A][target=B] where A is followed, and upon the death of A, the rest would be standing not doing anything because the command to follow A would be present before follow B (B would never be followed)
[nodead] is similar in some ways but again if we didn't have it, we might have a harder time macroing :P
hope the spamm macro works for you too ^^
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