The question of whether of not Godzilla is now canon in Magic lore is a variable answer
Gush Wizards has restricted this and unrestricted this more times than I think I can count, so don't expect it to happen anytime soon
In addition, Sorins second ability doesnt provide evasion, and it requires at least three creatures to be attacking to provide equivalent power to Elspeths (at least with the first emblem)
Kosei, Penitent Warlord Although many ogre societies are not inherently violent, Kosei came from a village that worshipped Hidetsugu, the legendary ogre who swallowed an oni and gained demon powers for himself
The mana cost of Days Undoing might be low enough to render all of these drawbacks moot, but Im not holding my breath
Of course, shes still vulnerable to decks that prey on double black lotus decks, as well as Void Snare (which can target planeswalkers)