I noticed that I was not doing as much damage with my magic as I was supposed to, so I did a quick test. It's pretty simple, I attacked a group of 3 spiders (each had 0 defense) using the fire spell Infernal. I did this both before and after constructing on a fire shard, and I did it several times (more than 10 damage rolls) to get decent statistics. My sovereign had 15 intelligence. The results were:
Without shard: Average damage = 8.6
With one fire shard: Average damage = 7.6
Both results are what you'd expect without a shard. I've also done this for lightning bolt with an air shard, same result.
So has anyone been actually seen shards improve damage like they are supposed to, or are they completely non-working at the moment?