Each time you cast a card like Plaguecrafter or Fleshbag Marauder, it returns to your hand so that you can play it again next turn (provided that your commander is still alive, of course)
Since your deck will be full of instants and sorceries anyway, that prowess ability can grow it into a 4/5, 5/6, or something waaay bigger depending on how many cards you can play in a turn
Ok Dhelmise V #9 (Pokemon Sword & Shield) Details All prices are the current market price
How do I build a Mega Evolution master set binder
Plus you use it the grab the Dark World Archives for draw, Dark World Puppetry to banish 3 cards from the GY
[35] [36] Once the draft is done, players create decks out of the cards they picked, basic land cards being provided for free, and play games with the players they drafted with