Put that card onto the battlefield and the rest on the bottom of your library in a random order. The short version is that you get to hit people with things, sacrifice them if you want to and then replace them with the next creature that shares a type from your library
Notably, this isnt the first time that DnD has appeared in Magic: The Gathering, with Wizards of the Coast previously releasing both the Adventures in the Forgotten Realms set and the Battle for Baldurs Gate Commander expansion, as well as Secret Lair dropping a DnD set that tied into the 2023 Honor Among Thieves film
Millicent, Restless Revenant | Illustration by Denman Rooke Azorius is very much about tempo
Fallen Ferromancer, Prologue to Phyresis, and Norn's Decree may not be the most efficient, but they lay down good tracks for red, white and blue's proliferate train
Usually these are ramp cards for mono-color commanders like Zada, Hedron Grinder in red or even Taniwha(!!) in blue