Thundermare [Portal] San Diego Comic-Con 2017 then return that card to

then return that card to the battlefield under its owner's control

Set: Global Series Jiang Yanggu & Mu Yanling Type: Basic Land — Forest Rarity: Common ({T}: Add {G}

Set: Planechase Type: Creature — Zombie Avatar Rarity: Uncommon Cost: {3}{B} Soulless One's power and toughness are each equal to the number of Zombies on the battlefield plus the number of Zombie cards in all graveyards

then reveal the top card of your library

Set: Fifth Dawn Type: Creature — Rat Rarity: Uncommon Cost: {1}{B}{B} Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats

Thundermare [Portal] San Diego Comic-Con 2017 then return that card toSet: Portal Type: Creature Elemental Horse Rarity: Rare Cost: {5}{R} Haste (This creature can attack and {T} as soon as it comes under your control.) When Thundermare enters the battlefield, tap all other creatures.