This Magic Multiverse set, launching on Jan
Key Cards The Ur-Dragon The Ur-Dragon is widely considered to be one of the best commanders ever printed, for good reason
This is the type of card that might look like its not doing anything because its not triggering, but it might not be triggering because its actively disincentivizing opponents from doing something else
You can tap any untapped artifact you control to pay the cost of the mana ability, including an artifact creature you haven't controlled continuously since the beginning of your most recent turn
Most often you are shuffling away extra lands, but sometimes you are digging for another threat to close the game or a removal spell to prevent you from losing
A giant monster isnt out of place in Golgari, and Simic slots can be difficult to round out in a lot of Cubes, so I see a lot of potential for this card to show up