Version 3.4 Release Notes

ADDED

Limited Time Cosmetic: Added a festive Christmas Hat to the Town Clothing Store.
Corrupted Zealot, a new 2-mana Dungeon Master creature from the Crusade of Sun and Stone set.
Deck Copying: You can now copy any public deck currently in edit mode! You can also copy your own decks to easily make variations.
Hide Deck UI: Added a new privacy setting to hide your deck information from other players while editing.
Deck Building: You can now add more than 40 cards to a deck while editing to help with theory-crafting.
Save Invalid Decks: You can now save decks that are incomplete or invalid (e.g., less than 40 cards) to finish later.

Adjusted the alternative price option for Booster Packs to be -200 Gold / +100 Gems.
Cards you do not own will now appear red in the deck list when editing or copying.
The Luck meter now only shimmers and shakes when it is completely full.