Strategic reasons to also bounce our own include getting rid of awkward Auras or resetting for some great enters-the-battlefield triggers
The precon even has an infinite combo included in it, making for the best Bant Commander precon you can get
Primaris Eliminator and Royal Warden both offer a lot to like as well, and I could see all three of these creatures existing in the same Cube, but Necron Deathmark gets the nod from me on having the highest abstract power level
Crew 4 is easily attainable with the number of tokens the deck makes, and its indestructible to boot
Once per turn, you may turn a card with an inkwell symbol from your hand into face-down ink, becoming a resource that you can turn sideways to summon characters You use 60-card decks in Constructed, 40-card decks in Limited, and the official website has an excellent "how to play" section