ral cards mtg and the Implicit Maze - Foil where X is the number of coins that came up heads. MTG Magic 1x x1 -

Once you have collected all the cards, you can experience the mighty battles between pirates

If you want enough value to justify including this, you don't have to throw this on an Ixalan Dinosaur and get all of the triggers, but don't you kind of want to

Normally, I wouldn't include a card that depends on a specific creature type in this sort of list, but Gravecrawler is powerful enough to force my hand, and zombies are common enough that it's not an enormous limitation

Omniscience also works well with Shifting Woodland if you can enable Delirium and get Omniscience into your graveyard

Potentially allowing you to play much of your deck for free, this card offers insane value