Put the card you are checking side to side with another one of the same set (its here were you finally discover a meaningful use for your Benalish Heros and Pearled Unicorns)
Wilhelt replaces your Zombies with even more Zombies when they die (again), and then provides you a free, once-a-turn sacrifice outlet to turn your creatures into card advantage
Each theme is made to show one of the features/mechanics of the new set, so there will be a lot of synergies when it comes to certain combinations of colours when building your 40-card deck
Starting out in a remote cabin, you slowly build up a deck of woodland creatures and learn the rules of the game - you can sacrifice your weaker cards for blood, and use the blood to place other, more powerful cards against your opponent
Plus if she blocks or is blocked, she'll first strike and deathtouch and kill the one engaged with her and trigger stuff to come back to your hand, so she's even good in the red zone