Perilous Research [Commander 2011] Forest then put any number of

then put any number of them into your graveyard and the rest on top of your library in any order

Set: Dark Ascension Type: Creature — Insect Rarity: Mythic Cost: {2}{G}{G}{G} Vigilance

Set: Revised Edition Type: Creature — Human Pirate Rarity: Rare Cost: {4}{U} Pirate Ship can't attack unless defending player controls an Island

that creature's controller sacrifices it

Ob Nixilis Type: Instant Rarity: Common Cost: {G} As an additional cost to cast this spell

Perilous Research [Commander 2011] Forest then put any number ofSet: Commander 2011 Type: Instant Rarity: Uncommon Cost: {1}{U} Draw two cards, then sacrifice a permanent. When the School of the Unseen fell, so many magical treasures lay abandoned that no amount of death could deter the stream of thieves and desperate scholars.