Since Tuvasa is your commander, you only need to get it to 21 damage on each opponent before you win, something incredibly easy to achieve while you protect it with an Asceticism and beef it up with Ethereal Armor and All That Glitters
Along with the official products out there, you can adhere to Arena's banned card list, and build your own decks using Standard-legal or Historic cards
Sure, Steve costs less mana, but you have to sacrifice it, and it only finds basics
The debut set has nearly 300 Cards, meaning many players havent finished the set and gotten their Mew
Theres a ton of applications for this: you can elk your own cards once youre done with their effects, you can elk the Food token he makes, and best of all, you can elk your opponents big creatures and artifacts essentially making Oko a persistent answer to that your opponent will need to play around