Uldahn Brand?

[Brigandier]

I'm not a stat wizard by any means, but I can tell you what I've read and you can believe what you want to believe.

Attack magic potency is better for boosting damage when your INT is at a ceiling.

INT is better for boosting damage and getting over the resist wall when nuking mobs of higher level.

I'm going to give you the benefit of the doubt and ask for your data on this, but fairly certain it has been well established that INT & AMP have no ceiling, and also have no effect on magical accuracy.

My suggestion to OP: Currently some stats might be working funny, but INT and Attack Magic Potency have been verified as working AWESOMELY. Thread: INT working as intended.

Get the Lightning Brand with a good INT meld, or Electrum with a good MACC meld. Preferably double/triple melds if possible. No unmeldable weapon is going to compare.