How do I kill a water queen with a medusa shield?

[Argitoth]

NTJedi said:

Only way?? I don't know your entire list of mages, summons, items, and research levels... but your situation definitely has more than the one way which worked.

Most of the ideas that were posted had to do with luck, such as getting past a high magic resistance and being able to hit the queen multiple times during battle with a low-precision spell like pillar of fire and gift of the heavens. Of course, gift of the heavens would only require one hit, but I couldn't catch her with a "gift of the heavens" caster. Not to say these aren't good ideas. I think in most situations, people could gather an army. I guess I should have mentioned that the queen would only go in my allie's territories. My allie had very little access to magic other than nature and earth. In my opinion though, you didn't need to know that information. All you needed to know was that I had access to any spell and any item. (except wish!)

Now, don't take this in the wrong way, I'm just discussing this stuff for fun. I don't expect to have everyone agree with everything I say.