Those are the three big boxes to check off for most effects, and this gives you all three if you need it
This is something we're continuing to experiment with, so you may see some future cards that share a set code but don't have an expansion symbol on the card
Magic Origins TypeArtifact Creature Construct Collector Number223 Raritycommon ArtistCraig J Spearing This creature can't attack alone
First, Chapter I lets you choose the most threatening noncreature artifact from each player to turn into a 0/4 Wall artifact creature with defender in the hopes that, once Chapter III comes around, you will destroy all of them (along with any other Walls around)
However, you can find it much cheaper
The ramifications of these changes are hard to tell beyond the basic observation that Urzas Saga becomes stronger and Blood Moon effects become weaker against opposing Urzas Sagas