These are cards you can play in a mono-white Commander deck, which means Im excluding white cards that have additional colors in their color identity, like Dismantling Blow or Lantern Flare
Kogla and Yidaro can enter the battlefield with haste, or fight something, or be cycled to destroy an artifact or enchantment
owyn, Shieldmaiden owyn, Shieldmaiden makes it very easy to go wide in a humans deck while also just being a powerful attacker on its own
(AZORIOUS) MERFOLK: BIG WINNERS I say Azorius in brackets, because the UW Merfolk (or Bant Merfolk) decks are going to win the most from this update though any monoblue cards can absolutely find their way into the likes of Kumena, Hakbal or Svyelun
In the case of Worldspine Wurm and Wurmcoil Engine, youll actually end up with more power on the board once those creatures die and are replaced by their multiple tokens