Death Grip Focus Macro Lost Actual Target

Hello I'm having some problems when I use deathgrip in the focus while i dont have focus i lose my actual target and i need to add to the macro /targetlasttarget, can somebody help me in this problem?

I tried to do /cast [target=focus] death grip and /cast [@focus,exist] Death Grip and no ones works.

Quote:

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/cast [target=focus] Death Grip

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Works.

Quote:

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/cast [@focus] Death Grip

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Works, but only if you have a valid focus target. Otherwise it doesn't.

Quote:

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/cast [@focus, exists] Death Grip; Death Grip

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Works both on your focus and on your current target if you don't have a focus.

Do make sure you're spelling it correctly.