I was happy to see the shield effects increasing, Im sure they are already designed but Im bored and cant play till I get a new vid card tomorrow so here's some fun ideas
axe/hammer/spearblock-makes sense that shields could have some dr effects since they do that anyways when blocking
increased blocking dr-similar to the reaver shield although this may cause that shield to become less valuable
guard effects-makes no sense to me that armor has it and shields dont
daunting-increase to agro generated-for all you intimitanks out there
righteous-+2 ac vs evil
I would also like to see a power 5 set of shield effects kinda similar to our weapons they would have a high enchantment value so youd lose ac using these due to +5 not available yet.
Mirrored-chance to return a single target spell effect back at the caster.
Parrying-chance to deflect an attack
Paralyzing-similar to the weapon but triggers on target hitting you
Retaliation-returns 25% of physical dmg taken back to the attacker, you still take full dmg
Sturdy-50% chance to resist knockdown effects
I know all of these may not be balanced and need some twinking but just ideas love to hear more