Duskana exemplifies exactly the type of commander that I love to build around personally and frequently feature on Plot Twist : it rewards you for playing lots of creatures and implies a specific direction to build your deck toward while still leaving plenty of room for innovation
In Innistrad: Crimson Vow last year, we got a card called Bleed Dry, which is a random, forgotten uncommon that is the same as the front side of Invasion of Innistrad but with the upside of exiling the creature that it kills, and cards like Tragic Slip and Tragic Fall do the same thing for one or two mana if their morbid or hellbent conditions are met
This will have a slant towards Commander/EDH, as that is my usual focus
Players that earn 10 or more points during the series earn a foil Chocobo art print
That means more mana, more activations, and more opportunities to interact
Basic, cards that are extremely common and yet also extremely available