pokemon set with 264 cards Azumarill (059/264) [Sword & Shield: Fusion Strike] ATTACKS Leaflet Dance Basculin - 070/264 - Common

The top Commanders to chase include Toph, the first Metalbender, The Earth King, Fire Lord Azula, Ozai, the Phoenix King, Iroh, Grand Lotus, Wan Shi Tong, Koh, the Face Stealer, Bumi, Unleashed, Katara, the Fearless, and Avatar Aang

This will kill with CCs like Blood Artist and Zulaport Cutthroat and then net you triggers with mono-Black CC fun times like Grave Pact

Once Deadeye Navigator arrives, it costs but two mana to blink your Navigator or the creature it's bonded with, sloughing off targeted removal, combat damage, or anything else that threatens them

There are seven in existence, and a signed copy is worth $247, 230

As for playing with Wilhelt in the wider format, I think its actually a really great option for Zombie decks, especially seeing as though you can lose a whole board of Zombies and get an immediate replacement board of decayed Zombie tokens