At the start of each of your turn, you'll accrue 75 DP for permitted spending on your Destiny Draw
Mosswood Dreadknight plays off that story by allowing you to cast the adventure half of the card until the end of your next turn after it dies, allowing it to live again after completing its adventure
You can later cast the spell from exile by paying its printed mana cost
This used to be different, but Magic fans found a way to exploit the rules, allowing costly, powerful spells like Tibalt, Cosmic Impostor, to be played for free
Blood Speaker Since our commander is a Demon, Blood Speaker makes a pretty good creature that will keep coming back from the graveyard, and if it survives to our upkeep then we can sacrifice it to search up a Demon from our library
If you Japanese is a bit rusty (or non-existent like mine), our search by photo tool works with Japanese Pokemon cards too