Out of curiosity, are they ever going to raise the drop rate on these? I've had to have done Dun Scaith 20 or more times by now just to run through and only ever see these drop once in a blue moon after 20 - 30 minutes.

The only one I managed to get was Echidna. I've only seen Scathach drop twice which I lost to other people, and I've never so much as seen anyone with Calofisteri let alone saw it in the loot roll.