Attaching equipment to your knights for free is a huge boon
Brago, King Eternal Brago, King Eternal is a powerful commander that likes to flicker nonland permanents, creating a ton of value each time it deals combat damage
Another downside of Portable Hole comes right from its types: being an artifact in an Urzas Saga meta, means that hate cards are plenty, so you dont want to play a removal that dies to cards such as Kolaghans Command
Maestros Confluence Maestros Confluence has three distinct options, one of which goads each creature a player controls
Especially those who have no means in this world
These creatures come down and impact the board with their saga abilities, but the tradeoff is that they will leave after a few turns