PanharmoniconPanharmonicon is the originator of the ETB effect doubling and still the hardest to remove, while Starfield VocalistStarfield Vocalist, Elesh Norn, Mother of MachinesElesh Norn, Mother of Machines, and Virtue of KnowledgeVirtue of Knowledge have all contributed to the preponderance of similar effects, making it so that a deck like this has enough functional reprints to work without the commander
Not saying youll get two-for-oned, but there might be a stronger option for the mirrors
It's neat and powerful for sure, I'm not particularly excited since I think cheating things into play is...a little bit boring
Teferi, Who Slows the Sunset Not given the respect of previous Teferis on release, Teferi, Who Slows the Sunset is slowly climbing in EDH decklists
Over time, the popularity and diversity of Cubes have grown