These boost your commander creatures and can act as a second commander similar to the partner mechanic
Cecil is our Honorable Mention, though, because he's almost good enough for a few categories
Enchant permanent allows the aura to stay attached even if Purphoros stops being a creature on your side
Urza, Lord High Artificer Symmetrical effects are balanced in theory, but as anyone who has cast a Wrath of God knows, with a little bit of planning that symmetry is easy to break
Yes, it is likely to appeal to younger players, but it has such a long history that the assumption becomes ludicrous
Below, you'll find each deck, added day by day, with a link to where it was previewed sharing details about the new cards, contents, and playstyle for the deck