Even if the opponent has Leyline of the Void or Rest in Peace that you dont have another answer for, Oko can turn your one- and zero-power creatures into 3/3s, giving your backdoor plan of attacking with horrible creatures some real teeth, especially against an opponent who maybe took too many mulligans to find a hate card
They let the kids play a little vending machine game to try and win cool stuff
You could justify buying this for the reprint value alone, or if you just want to scrap it for playables for other decks
Getting up to three treasures from Olivia, you just need another treasure producer creature, or doublestrike, and you can get the five you need
With the exception of Excalipoor, whose origins are not explained, and Bashosen, which was created in Cocoon, each of his swords are said to come from another Final Fantasy game: Excalibur comes from a hidden room in Alexandria in Final Fantasy IX , Muramasa was recovered from the ruins of Zanarkand in Final Fantasy X , Masamune was fished out of Doma's poisoned river in Final Fantasy VI , and the Zantetsuken is apparently not Odin's sword in this incarnation, but a nail shed by Chaos from Dissidia Final Fantasy