Getting back Ulamog, the Ceaseless Hunger and Kozilek, the Great Distortion is fun, but you could also get Dragonlord Kolaghan and Dragonlord Atarka

2.5%inclusion 1.0lift 591 decks 23.3K decks Beacon of Immortality 2.4%inclusion 0.6lift 555 decks 23.3K decks Sorceries Farseek 65%inclusion 0.2lift 15.1K decks 23.3K decks Cultivate 62%inclusion 0.2lift 14.5K decks 23.3K decks Toxic Deluge 61%inclusion 0.8lift 12.1K decks 19.8K decks Revive the Shire 59%inclusion 1.6lift 13.7K decks 23.3K decks The Battle of Bywater 57%inclusion 1.4lift 13.2K decks 23.3K decks Dusk // Dawn 51%inclusion 1.2lift 11.9K decks 23.3K decks Night's Whisper 48%inclusion 1.1lift 9.49K decks 19.8K decks Many Partings 46%inclusion 1.4lift 10.8K decks 23.3K decks Fell the Mighty 42%inclusion 1.2lift 9.71K decks 23.3K decks Fumigate 36%inclusion 1.2lift 8.37K decks 23.3K decks Harmonize 27%inclusion 0.7lift 6.19K decks 23.3K decks The Ring Goes South 18%inclusion 1.4lift 4.25K decks 23.3K decks Rampant Growth 17%inclusion -0.2lift 3.93K decks 23.3K decks Nature's Lore 16%inclusion -0.3lift 3.73K decks 23.3K decks Blasphemous Act 16%inclusion -0.1lift 280 decks 1.76K decks Three Visits 11%inclusion -0.3lift 2.59K decks 23.3K decks Supreme Verdict 9.1%inclusion 0.1lift 131 decks 1.44K decks Sam's Desperate Rescue 8.2%inclusion 1.4lift 1.63K decks 19.8K decks Claim the Precious 7.4%inclusion 1.5lift 1.47K decks 19.8K decks Rise and Shine 7.3%inclusion 1.1lift 105 decks 1.44K decks Forth Eorlingas

The five-cost sorcery in White destroys them all, but this time any dork with counters on it survives not just +1/+1, so that's shield or indestructible ones too
The Space Stone can tap for blue mana
However, this comes with a risk, as your creatures also become artifacts, making them vulnerable to artifact removal that is common in Commander games
Here are the Secrets of Strixhaven Commander Decklists