If that is through Menu Chat, then people who use menu chat can't really tell what cards you have. It's just a speech part to help everyone work as a team and get priorities understood. For instance, I was on my Fire wizard in practice PvP and I had a menu chat partner. He told me in menu chat to use a fire charm on him. But even then, just because he told me to use fire charms doesn't always mean I have them.
Ever have someone join you in battle, then start telling you what cards to play? And worse, how to play them?
Oh yes, especially when they are a lower level player. I had one, after asking what all my attacking spells were, he started telling me what to use and not to used. I got tire of it and Kill all the enemies the next round. He got so upset, he started in on me till I gave him a choice; Leave or get Reported for Harassment. He left in a Hurry!
i ignore anyone who tries to tell me what to play or who to hit. but i do request for all not to use my prisms and traps. as i plan to make a single hit on one element of the opposition. if they use my trap or prism they get one chance if they continue and they are a lower level i leave and let them get killed. and make a note on my game tab not to play with them again.
if people can not be considerate then i do not want to be around them