Help! I went into a dungeon with characters unleveled and can't beat the boss!

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@gjustinj wrote:

This is my first time on a Dragons Age title, and I did not know to back up older save points. so I have none - I've been using the same save the entire time.

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You don't even have an autosave before this happened?

To be fair, I don't see how this is on BioWare. You are always warned before starting a main story missions what the recommended level is so you can prepare in advance.