Clever Concealment [Phyrexia: All Will Be One Commander] War of the Spark Prerelease Promos Sacrifice another Serpent or Squirrel:

Sacrifice another Serpent or Squirrel: Choose one —

Set: Zendikar Rising Prerelease Promos Type: Instant Rarity: Rare Cost: {2}{R} Put any number of cards from your hand on the bottom of your library

repeating the experiments to find the perfect combination of metals that produces the purest gold

「無限の考えが多元宇宙を流れ、開からた心を待っている。」 —-ビブリオプレックス：序論

It contains the totality of Alhammarret’s notes

Clever Concealment [Phyrexia: All Will Be One Commander] War of the Spark Prerelease Promos Sacrifice another Serpent or Squirrel:Set: Phyrexia: All Will Be One Commander Type: Instant Rarity: Rare Cost: {2}{W}{W} Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.) Any number of target nonland permanents you control phase out. (Treat them and anything attached to them as though they don't exist until your next turn.)