Forum:Miracle Flipper + Magical Dimension

Ok Miracle Flipper says if it is destroyed by a trap or magic destroy 1 monster your opponent controls. Can I use this effect if I use magical dimension and tribute the miracle flipper can I destroy 2 monsters instead of 1 because of miracle flipper. The other question is lets say my miracle flipper is on the opponents side of the field and i destroy it with a magic or trap can i destroy 1 of his monster or does he destroy my monster?