First, remember that you are never chasing an Iron Lord. You are simply being lead to your defeat.

Second, even you Titans should worry. An Iron Lord does not go down easy.

Third, and this is just for you Hunters, your Spectral Blades may strike fear in most powerful of Guardians, but they'll just make an Iron Lord angry.

Finally, for you Warlocks, your Nova Warp should be saved for a less challenging target.

Let me know if you found these tips useful or if I made any mistakes.