Mudsdale (SM20) (Staff Prerelease Promo) [Sun & Moon: Black Star Promos] Nightmare Beast then reveal cards from the

then reveal cards from the top of your library until you reveal a card with the chosen name

sacrifice it unless you exile another Merfolk you control

Mentor (Whenever this creature attacks

Set: Foreign Black Border Type: Sorcery Uncommon Cost: {4}{G}{G} Destroy target permanent

Set: Betrayers of Kamigawa Type: Legendary Creature — Human Ninja Rarity: Rare Cost: {3}{U}{U} Ninjutsu {2}{U}{U} ({2}{U}{U}

Mudsdale (SM20) (Staff Prerelease Promo) [Sun & Moon: Black Star Promos] Nightmare Beast then reveal cards from theSet: Sun & Moon: Black Star Promos Type: Fighting Rarity: Promo Retreat cost: Colorless,Colorless,Colorless,Colorless