Seriously, using this with unleash cards or other ways to slap those +1/+1 counters onto your creatures is going to be incredible powerful
How this works is the game graciously gives players a single free card pack every day that you log in
If that creature was an Angel, you get a number of Blood tokens equal to its toughness instead
At a $5-6 rare from an under-opened large set it doesnt have a lot of financial upside but can see a week or two where supply is pressured due to the Deck of the Month syndrome and youll wish you already owned them
Although a niche case, Death's Shadow can be paired with an enchantment, Phyrexian Unlife, to allow it to exist without its statistics being hindered
The compleated mechanic lets you land it early if needed with lower loyalty, which is perfect for slowing down enemy attackers with its +1