Sovereigns of Lost Alara immediately jump to mind, combining with Eldrazi Conscriptionbut I ultimately decided against it
First introduced in their Secret Lair: Phyrexian Praetors: Compleat Edition set as a hard to find bonus card, Magic is diving head first into the individually numbered card market with full force as just about all new sets recently have these special chase cards
The deck shuffles automatically, bringing fresh challenges to each game
It doesnt have complex mechanics, confusing interactions, or clever tricks
It slows your opponents down by such a disgusting degree that it doesnt even feel good for the Augustin player
My Najeela, the Blade-Blossom also likes to go to the red zone and is pretty good at making 1/1 creatures - though the White Warriors she creates tapped and attacking won't trigger Cavalcade because they aren't declared as attackers