CommentStreams:A6fdf062d7f47261d1f7ddfd81431d9b

Your primary concern would be taking into account the drop rule for the card dups from the event coffers. That is, apart from a few exceptions, for each rarity grade (Rare, Epic, Legendary) you will most likely receive dups for the cards for which you have the least dups to begin with, even if they are 10-starred. This makes dusting unrecommended until you have reached 10-stars in a certain rarity. For example, if you have all Common and Rare cards at 10-stars (or less than 5 stars) it is totally safe to dust them. Otherwise, you would have troubles collecting enough dups to 10-star the unfinished cards.