What interests me here is that you can still pay five mana to get most of an Austere Command without being in an Energy deck
For starters, getting a one-mana discount on each of the Party creature types is fantastic
Losing Null Rod probably wouldn't have a meaningful impact on the format
Collector Boosters may contain these cards: TLA 1281, 287392
Lumra, Bellow of the Woods Green and lands go way farther back than the start of Arena, and going forward there's certainly more green cards with amazing landfall abilities, and more than enough ramp to make 6-mana value creatures like Lumra, Bellow of the Woods feel easy to cast
Its not quite Armageddon, Decree of Annihilation, or even Obliterate, but the potential upside is so much more one-sided if you build your deck in a way that can fully take advantage of The Great Auroras unique reset effect