Ob Nixilis, the Fallen [Zendikar] Cat Beast You may choose a nonland

You may choose a nonland card from it

Set: Morningtide Type: Tribal Sorcery — Rogue Rarity: Rare Cost: {5}{U}{U} Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue

" —Mariners' legend

Nightmare's power and toughness are each equal to the number of Swamps you control

Ob Nixilis, the Fallen [Zendikar] Cat Beast You may choose a nonlandSet: Zendikar Type: Legendary Creature Demon Rarity: Mythic Cost: {3}{B}{B} Landfall Whenever a land enters the battlefield under your control, you may have target player lose 3 life. If you do, put three +1 +1 counters on Ob Nixilis, the Fallen. His spark lost, he plots revenge upon the plane whose corrupting mana fractured his soul.