I ain't sure if this has been done or not before, but here goes. (I'm not the best in describing thing either)
As you may know, the Tortodrone shields have a different shield bash attack.
The shield bash looks a lot more powerful than it really is. A tortodrone emerges from your shield to crush your enemies.. But, it deals kind of little damage.
So my idea:
The Gorgomega shield which has Shadow defense, could deal Shadow damage. Which makes it stronger against Gremlins and Slime. But weaker against Undead and fiend. So it's a + and a - in one. (And of course neutral damage Vs. the other 2 monster families)
Same goes for the other shields.
Omegaward: Bonus damage Vs. Undead and Construct. Less damage against Gremlin and Beasts.
Savage Tortoise: Bonus damage against Fiends and Beasts. Less damage against Slime and Construct.
Grand Tortoise: Neutral damage Vs. all the families. As it does not have a downside to the damage, but nor dose it have an upside, so to speak.
Looking forward to any feedback.
So you are going to nerf the damage by making it deal less damage to what your carrying the shield to protect against? That seems kinda counter productive, considering the only reason to get the shield is for either looks or shield bashing.