mirror shield and magic mirror

I got magic shield 2 times and am considering to D/E them. If they have a use I’ll keep one.
It reflects back the physical attack when? After enemy hits the use or use early and enemy hits? Wouldn’t watersput be better then as u can use it multiple times eg. Neon gets cyg to 80% so cyg can keep doing 80% dmg to all mosters in 2v2
Oh and swith hit, doest it swith ur monsters or the opponent’s monster?

Water spout, magic shield and mirror all work for just one turn its not the carry over, the spell magic shield and mirror need to be pre casted since its a damage return but water spout just copy's the attack so It needs casting after.

Switch hit switches your own monster with a small bonus damage, it's not worth a spell slot unless your stacking unnerves intimidates etc...