I thought I would share some ideas for some Decks that could be put in the game or at least a mod.
Purple Deck
+1 Hand, +1 Discard, -1 Joker Slot
Golden Deck
All Cards in deck start Golden. Shop items cost 3 times as much and sell values are only half as usual (~6 times less in this case).
Snowball Deck
+10% of a played hand is permantly added to future hands
Kiddy Deck
Mult will now only add instead of multiply, 0.25x Blind Size and Mults will multiply chips too to compensate (Ex: 300 x 5 will now be 300 + 5. X mults will still work. Ex: 300 x 5 with a 2x mult in this deck will be 600 + 10 instead of 300 x 10.)
Royal Deck
Deck only contains Aces, Kings, Queens, and Jacks (16 Cards). Begins with 0 Discards. -1 Hand, -2 Hand Size