Your strategy here consists of playing as many cards as you can from exile to create a lot of Treasure and generate some strong mana advantage to play even more cards
When you next cast a creature spell of that type this turn, that creature enters with an additional +1/+1 counter on it
All of this is to say that Oko is extremely hard to answer in combat, so it largely requires a spell to deal with it (or, as we see in Throne of Eldraine Standard, you can go way over the top of its threat generation by, for example, making lots of 2/2s with Field of the Dead)
Emrakul, the World Anew may not have made our list last week, but the Eldrazi made it clear during the past week that she is not to be denied
At the moment, I'm in one of my "I think it's good, and there could be a deck that wants four, but I'm pretty sure it's not great" sort of moods
Struggle // Survive Landfall and lands matters decks rejoice with Struggle // Survive in their build