All Possible Offhand Mods?

Hi, I know this isn't a PC, but I figured if you know PC's, you know the answer to this question.

My question is, what are all the possible mods for an offhand; can armour mods be duplicated? (ie. +10 piercing, +5 whiel enchanted)

tiA

nope offhand mods donot exist,same with wands and shields

By mods I mean inherent, not upgrades. Sorry for the miscommunication.

i think its rechagre, cast time, armor vs phys, armor vs elemental, armor vs specifics, life always, life while enchanted, armor always -20 life, armor always -5 energy, armor while enchanted, attribute +1

there may be more, those are just what i know offhand

Thanks, could I get the precise figure of the armour added?

The maxes are...+10ar Vs a specific type of damage or enemy, +8ar Vs Physical/ele +5ar Vs all... I think.

Can anyone clarify this? I plan on buying a +5Al vs Phy foci, if that's not perfect I would probably retract.

Also..

Armor +5 while health is above 50%
Armor +10 while health is below 50%

and I could be wrong about this but I thought that the +10<50 is the only armor mod over 5 for an offhand.

bump, can anyone clarify if +8 is max versus elemental and physical please?