A more general approach to removing snow as that's what's underway here. The card's info says:
RB09-EN027:
Winter Wrap-Up
Normal Trap
When you have "My Little Pony Glamorous Rarity", "My Little Pony Hard-Working Applejack", "My Little Pony Knowledgeable Twilight Sparkle", "My Little Pony Caring Fluttershy", "My Little Pony Brave Rainbow Dash", and "My Little Pony Energetic Pinkie Pie" in your Graveyard: Target those monsters; banish all WATER monsters on the field (If there are face-down monsters, reveal them, then banish them if they are WATER. Otherwise, Set them face-down.), and if you do, return those targets to your hand (or the remaining ones if any are removed from your Graveyard).
Rainbow Rare