How would they prepare?

What would they eat?

Whose gas would be the smelliest?

Would could fart the most without shitting themselves?

And who would win?

Probably beans or something with fart powder or cast a spell to make themselves fart a lot.

I'd like Twilight to win.

If shitting themselves is an option I'd like them to be wearing something for it, like pants, shorts, or panties.

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I think Shining is a nasty stallion who likes to sniff Cadence’s ass as she farts