Probably graduating from the same Demonic University as the Demonic Tutor, Demonic Attorney is making a case to a Demonic Judge
Thanks for casting this card and essentially starting the game with one fewer card in hand
But when you tack on milling synergies in its first chapter, returning all lands from your graveyard to the battlefield in the second chapter and another target creature getting +X/+X equal to the number of lands you control in the final chapter, youve got the makings of a top-flight game-finisher and yet another example of Summons being playgrounds for the Timmys/Tammys of the world (like me)
The Floodborn, for example, have more powerful versions that can shift onto a pre-existing card for a discount
For example, Steel Overseer puts +1/+1 counters on each artifact creature on its controllers team
A case in point is what I'd nominate as the second-most beautiful card in all of Magic: Exploration, by Brian Snoddy