So the current reward cards are all still in print but two of them are gotting close to being out of print
Both Axemaster and Almo Cambio are getting close to getting out of print and have jumped up in value because of this. But there are two other cards on this list that cost cents at the moment and i belive will go up in value once the print rate gets into the high 80% these two cards are
Both Demented shark and Nightmare cost around $0.30 a card at present and you may get them in your daily chests and end of season chests most people when they get these cards just sell them off for the DEC but if you look at the stats of them they have value
Lets start with Demented Shark
this card is selling for around $0.27 a card so very cheap it has a good base set of stats and at level one has the ability to give all friendly monsters a +1 melee which is great same as a few summoners but if you get the card upto level 6 you also gain thorns which is a great ability causing 2 damage to melee monsters that attack the card again a great skill to get the card to a level 6 you will need 100 cards at present thats only $27 which is crazy
Now lets talk about Nightmare
This card is selling for around $0.34 a card at present so again very cheap it has great base health and speed and at level one has the blast ability which damages the monsters ether side of the one it hits causing extra damage per turn but again get this card upto level 6 and it also gains Phase which can make magic attacks miss this card also you gain extra speed and health to get it to level 6 you will need 100 cards it will cost $36 again so cheap for what you get
So there you go two monsters that are very cheap to level up and i think will be worth alot more in the future so grab them while there cheap