Crested Sunmare [Hour of Devastation Prerelease Promos] SV012 Nightmare's power and toughness are

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

then reveal the top card of your deck

if Pulverize is in your hand and you have an empty arsenal zone

Each of them attacks its owner this turn if able

Crested Sunmare [Hour of Devastation Prerelease Promos] SV012 Nightmare's power and toughness areSet: Hour of Devastation Prerelease Promos Type: Creature Horse Rarity: Mythic Cost: {3}{W}{W} Other Horses you control have indestructible. At the beginning of each end step, if you gained life this turn, create a 5 5 white Horse creature token. "It is evidence that some pure corner of the world must still exist." Djeru, former Tah crop initiate