Card Question?????????

Question

What is so good about the spell card's effect of "Shifting Shadows".

Answer 1

is more good is u have exxod cause his def is 4000 but his attack is 0 but if u haev great spirit den every time is ur turn u can switch def and atk and attack ur opponent monster and den after ending ur turn u use shifting shadows effect  

Answer 2

black hole?

Answer 3

if you have good monsters with low def and monsters with high def that can both be switched into face-down def position once per turn due to their effect you can activate it to make it so that your opponent doesnt know which monster is in which slot (pretty much helps save your weaker monster with a better effect)