Can I use an ellipsis before a comma?
Solution 1:
No, you should not put a comma after an ellipsis. Use either the ellipsis by itself or the comma by itself. Wikipedia has an example of an ellipsis immediately followed by a comma, but this is abnormal in the context of writing dialogue. It would not contribute to a natural feel.
Also, you don't deserve isn't its own clause, it is you don't deserve your shield (one clause) rearranged into your shield you don't deserve. No comma. Edit: I'll let this drop, since the example lacks sufficient context to determine the form of the sentence.
I can't comment very well on the second part of the verse, since I don't know what it means or how it relates to the first part. All I can say is that assuming the second part does make sense, the following is a better option:
[...] your shield, you don’t deserve... nor how can I put into the line?