The Superest

Isn't Volcanica female?

Well... through his gender flows ambiguity....

Whenever I've played this game with my daughter, one of us gets to "lava" or "volcano" and the game ends.

I anxiously await the Volcanica-topper!

Perchance this shall herald the coming of the dreaded Frostillicus...

Regarding him being female, I believe you are thinking of Vulvanica.

As for what trumps him, clearly it will be Virgil the Virgin Sacrificer.

Haha. Vulvanica. Why didn't I think of that! Nothing is more powerful.

It's easy to top a volcano. Snow does it all the time. Ha! Joke.

What actually defeats volcanoes is erosion. Seriously. Next hero should be Old Man Weather.

What defeats a volcano? Shifting plate tectonics, of course!

MT.NET – I'm not sure anything is going to stump these guys. Even if there are 100 comments that scratch off possibilities beforehand. Which is good for us!

In regards to DVLFISH's comment... reminds me of The Hobbit, where Bilbo and Gollum challenge each other in a game of riddles:

This thing all things devours:
Birds, beasts, trees, flowers;
Gnaws iron, bites steel;
Grinds hard stones to meal;
Slays king, ruins town,
And beats high mountain down.

Back after a long hiatus of 'forgot this existed'.

Anyway, my ever incorrect prediction:
Glacier: He may be flaming, but he's too cool for Volcanica to handle

Some sort of giant cork, IMO.

I was hoping for "Joe" or some such...you know, vs. the Volcano and all. Who won in Joe v. Volcano? I never finished the dang movie.