Board Thread:Dark Souls II/@comment-68.10.186.182-20150427205127/@comment-4511886-20150427211321

I've read that some weapons lose almost all their base damage when infused with Mundane, when weapons normally lose 50%.

The Blue Flame also gets better scaling with Intelligence with Poison and Bleed infusions, compared to Magic. (The difference isn't big enough to compensate for the lost base damage, however.)