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I believe that, in your calculations for Munchlax's Particle Whatever, you judged it as 4X effective on Mudkip, a pure Water-type. Does using a move in a combination double type effectiveness also?
Suicidal attack, naturally. I'm famous for preferring to draw rather than lose, though in this case it's more of a "nuke it cause he left me open to it."
Really shoulda went with Waterfall first, then he might have flinched me. Oh well!