With the Yu-Gi-Oh! card "Magical Arm shield," do you or your oopponent lose life points and is the monster...?

Question

destroyed after you use Magical Arm Shield?

Answer 1

Magical Arm Shield only always you to get control of another monster they control and that will be the next attack target. Damage Calculation is still applied normally.

Answer 2

Activate only when your opponent declares an attack while there is a monster on your side of the field. Take control of 1 of your opponent's face-up monsters, except the attacking monster, and this monster is attacked instead. At the end of the Battle Phase, return control of this monster to your opponent."

Dats mean dat u control one of ur opponent monster not the attack monster but any other one and use it as a target after dat give it back to ur opponent doesn't lose life points