Look for cards that have Wizards of the Coast printed at the bottom of the card
Filigree Crawler: good in Limited
All of these arts are an absolute home run
Unfortunately graveyard recursion is simply not a reliable source of card advantage for most decks, and particularly not this one
Ive seen Wordmail occasionally as well, and you could run it today in something like Bruna, Light of Alabaster decks
Usually when a planeswalker makes a respectable body for its cost, it leaves you with a planeswalker that has very little remaining loyalty, but with Oko, if you have some trivial artifact around, like an Arcums Astrolabe, it essentially gives you a 3/3 haste creature and a planeswalker with five remaining loyalty on the battlefield