If your Commander has Choose a Background, you may choose any one Background card that will essentially function as a second Commander, adding its color identity to your deck, and following the rules of Commander tax and going back to the command zone when it would move from the battlefield to anywhere else
Well, I invented something we had never done in Magic before to showcase it: At one point I thought about putting this on a cycle of big bosses, but in the end, I felt it could just stand alone on Ancient Adamantoise as something splashy and unique and that would get some weird attention of its own
Of course, Dragons are only half of the D&D formula
Okay, lets see what made the official Top 10 list
Importantly, they can be removed, and more relevantly, your opponents can be proliferated, making it harder for them to defeat
Texte de la carte: Life: 5 Attribute: Slash Power: 5000 Counter: -