Check out Harklaw, one of my personal favorites in the new Rewards cards! A Legendary, there will be about 200,000 copies of this card when it finishes printing!
Harklaw has 2 Melee, 2 Speed, 3 Armor, 9 Health, and Shield at Level 1, making him a powerful 8 Mana Anti-Melee tank for Death that really rounds out its choices of Death tanks. IMO though, this is one of the best Death tanks, at least, for me, and I will be pairing him with Gorlodon.
You can see he gains Immunity at Level 2, Demoralize at Level 3, and 1 Melee and 1 Health at Level 4.
Immunity brings a lot of utility to the card, making it very powerful, and Demoralize makes it one of the best anti-melee tanks you could ask for in Death. This card will be a nightmare for Fire and Life to deal with, and it gives Death a crucial card for surviving and becoming competitive in Poison rounds AND also gives Death a perfect tank to utilize when facing Mylor.
This card is a must for me, and I will be buying it if I do not receive it in chests before it's gone.
Harklaw is about $17.30 currently per BCX, making him one of the cheapest Legendaries available! (This pleases me greatly)
Another powerful card for Death, this gives Death a new, low-mana sustain focused magic attacker. With 1 Magic, 2 Speed, 3 Health, and Life Leech at Level 1, he will give Low-mana Death a bit more sustain. Pair that with Poison at Level 4, and this card becomes a very very powerful pick for anti-heal, anti-sustain, and anti-health battles.
Definitely a favorite and one I hope to receive soon.
Venari Bonesmith is currently $1.00 per BCX, making him one of the pricier of the new Rare Reward cards, and for good reason.
This one is my least favorite, but I recognize that it becomes very potent at high levels. With 5 Cost, it is a good mid mana tank with access to Flying, however, it really shines when it reaches Level 6 and 10, where it gains Backfire which deals 2 Damage on a successful dodge, and Retaliate, making it another hyper offensive tank, and possibly a better one than Phantasm. Able to dish out a good deal of damage and capitalizing on its Flying + High Speed stat spread
Pelacor Deceiver costs about $0.19 per BCX, making him one of the cheapest cards currently available. I expect this number to drop as more and more are released.