This is my dream come true
You can see the D&D influence in Ejsings work in the form of his liberal use of humor mixed with drama and the way he weaves some more illustrated or cartoonish techniques into whats generally a fairly typical MTG fantasy realist style
Steps in each phase play out as normal
For example, if Warrior is the chosen creature type and you control Bramblewood Paragon (a creature with "Each other Warrior creature you control enters with an additional +1/+1 counter on it."), a Runeclaw Bear would enter with an additional +1/+1 counter
There are a bunch of card styles and sleeves available for free
Learn more about Golgari Yawgmoth in Zen Takahashis recent article But I strongly feel, that most green decks might play it in a Sideboard slot, trying to deal with the likes of Blood Moon, Damping Sphere (if youre thinking about Amulet Titan), Torpor Orb, or Rest in Peace