The addition of 3 new Halloween themed rare cards to the Mythic deck. All 3 cards are only unlock-able by using mythic card tokens within the token management screen. You require 50 of these tokens to unlock each card.
The first card is named "Big Boo". This card uses scare tactics to frighten your enemy, removing 20 HP from your opponent, there are always consequences however and you will also take a 5 HP hit. This rare card will costs 9 manna to play and has a moderately high attack value of 8 and defence value of 7.
The second is a magic card called "Haunted", requires a high manna of 12 but has the ability to increase your HP by a useful 25 points.
Lastly is "Bewitched", also a magic card with an even higher manna requirement of 14, the card buffs all your defense counters by 5.