How Would You Improve Shields? (besides Blocking)

Why hasnt anybody said it yet?
Let me take your imagination to a new level. Picture this: Dual wield shields. Aegis+Ochain.
Cant use a weapon but who needs it.
On a more serious note maybe something like
'Occasionaly takes damage for a party member/ally'
'Occasionaly pushes all or some aoe damage to the paladin'
Some kind of counter effect to a block.
'Each block has a chance to reduce the cooldown of reprisal'
An afflatus solace or impetus type effect.
Each block grants a stoneskin effect or each consecutive block increases damage mitigated.
'Taking magic damage restores x% of damage taken to mp'
Or even putting a spell on the shield like the twilight cloak has impact. Maybe a shield with aquaviel or blink or regen?

Yeah just throwing things out there. But imagine this once again.
Dual wield shields, with all of the above effects.

Paladin doesn't really need any help in the shield department, it's pretty much everyone else who gets shafted when it comes to shields.

Smashing board build

Gun sheilds... as much as yall will hate me for it, there was a character in ff 14 that dual wielded gun shields.