Frostilicious

If you didn't start it before talking to Ame, then you can do it once you beat Titania.

A good tactic is to use the seed that gives your team tailwind on the first round to counter his tailwind (don't remember which one it is, but his lead uses it too so you can learn it from there). It's also a good idea to get a mon or multiple with smack down, as it turns the field from sky to mountain. Though you might need to repeat it if he changes it again, so move accordingly.

You need to change the cave using the darchlight mirror prior to the last room (or at the same room, can't recall which one it is).

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