I had 3 Sentinal helmits with reduced channel cost affixes on them. They Said nothing about being class specific. I shattered them and managed to get six shards.
Despite being a “suffix” and despite having a “suffix” spot available on my mage circlet I am not able to craft that suffix onto my mage helmet.
If this is as intended, it would be nice for it to be designated as a class specific affix. I wouldn’t have shattered one of the 3 helmets had I known that I couldn’t apply it to a mage helmet.
Additionally, once the Shards are itemized in the forge the are called “Channel cost” with the description “increased” behind them. So to a many it might be a shard that actually increases channel cost (when in fact it does the opposite).
Earlier I posted a bug about the text appearing in the item window, as it was called “reduced reduced channel cost”. I think possibly both “reduced’s” were removed when only one should have been.