[Mephisto]

A shield just adds defencew and gives a chance of blocking although i think it's only like 5 % chance to block

Defence affects how much damage enemies can do to you
for example if ssomeone attacks you and you have 100 defence they will do more damage than if you had 200 defence
dexterity helps to increase the difficulty of enemies hitting you in the first place
it's good to have a good balance of mana health dexterity and defence

Mephisto