Wrenn and Seven is a mythic Legendary Planeswalker — Wrenn card from Innistrad: Double Feature (DBL), collector number 208. Current market price: $4.63 (foil $17.61), TCGplayer market prices via Scryfall.
+1: Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard. 0: Put any number of land cards from your hand onto the battlefield tapped. −3: Create a green Treefolk creature token with reach and "This token's power and toughness are each equal to the number of lands you control." −8: Return all permanent cards from your graveyard to your hand. You get an emblem with "You have no maximum hand size."