It may look simple, but I can assure you it's not. The "rules" for this bug to happen are:
Obviously, the AI must have a Crusader and a flying weapon in field.[/li]
You play Blessing (or Improve blessing) on the flying weapon.
[/li] When the AI's Crusader endow the blessed weapon, it will not gain any bonus attack from the Blessing.[/li][/list]
Unfortunately, I lost the
screenshot and I'm just too lazy to try again. However, I do have this screenshot instead.
As you can see, the bug is pretty simple; it happens when
you use Blessing (or Improve blessing) on the AI's creature. It's not limited to just weapons. Blessing should put the "Full" and "Current" stats equal. The golem in the screenshot shows the correct attack (deals the correct damage) and HP. Since Crusader gains attack bonus from the "Full" stats, if it use endow on a blessed pulvy for example, its new stats will be 8|7 instead of 11|7. Also, I'm not sure if there's any other effect other than Crusader. Probably I should rename this thread as "Playing Blessing on AI's creature doesn't give the correct Full stats"? >_<
Blessing works normally if you target your own creature or the AI itself use its own Blessing. I also tested with other buff spells namely Chaos power and Momentum. They both work normally. This also made me believe that this is not intentional. I'm pretty certain this doesn't happen on the previous version, but I could be wrong about this. I'm wondering if this affect PvP as well? It'll be great if someone could test this.
In summary this is not just a visual bug, it's an actual bug. On the other hand, its not like blessing your opponent's creature is a common strategy. So, I guess this is not something really critical.