Xantcha, Sleeper Agent (Halo Foil) [Secret Lair Countdown Kit] Astartes Berserker You may cast Gravecrawler from

You may cast Gravecrawler from your graveyard as long as you control a Zombie

Fire of Kaladesh

Whenever Rottenmouth Viper enters or attacks

each player draws a card

" —*Rusko's Compendium of Clockwork"

Xantcha, Sleeper Agent (Halo Foil) [Secret Lair Countdown Kit] Astartes Berserker You may cast Gravecrawler fromSet: Secret Lair Countdown Kit Type: Legendary Creature Phyrexian Minion Rarity: Rare Cost: {1}{B}{R} Xantcha enters under the control of an opponent of your choice. Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls. {3}: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.