Doomsday [The List] Beholder you may search your library

you may search your library for a Treefolk or Forest card

perhaps hooves and claws will make them take notice

Set: Iconic Masters Type: Legendary Creature — Phyrexian Praetor Rarity: Mythic Cost: {8}{U}{U} Flash

that creature's controller sacrifices it

Set: Magic 2010 Type: Enchantment Rarity: Rare Cost: {5}{U} Whenever a player casts an instant or sorcery spell

Doomsday [The List] Beholder you may search your librarySet: The List Type: Sorcery Rarity: Rare Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up.