A few things I noticed during Ranger teaching night in test this evening.

When trying to talk to someone, while blend is in effect..

say }Pfan something

From my point of view at least, I saw:
You say "}Pfan something"


..and someone had cast Cheetah Swiftness, and later cast blend. You could still see the balance messaging for that person, while they were invisible.

I was also able to identify the spell they were preparing, even though I couldn't see them at all. Might be intentional, but seemed odd enough to mention.