Board Thread:General Discussion/@comment-25445615-20140921031541/@comment-5988483-20140921032208

I don't think you should restrict yourself to a certain amount. Different cards are useful in different ways.

Actually, I think the event you're talking about is Conquest( The Magicians were Guild Conquest). For Conquest, ten cards are usually used(unless you don't have enough attack or defense spirit). What happens is that your lead card attacks with your three strongest, then your lead attacks with your 4th, 5th and 6th, then 7th, 8th and 9th (excluding your leader card). With ten cards, you have a higher attack, defense and hp and can hit better.

Of course, throwing out the top four cards are good, but using only four cards, you can't get far in other events such as Sealstone (the current one), Tower and Soulgem. That means you can't get better cards to put in your conquest team, which also makes it difficult for you to play Conquest.

In addition, when you attack other people, or defend yourself from others, they will tend to have five cards, so by using only four cards you will be less likely to win.