MTG Salvation

7/14/2017 Once Sifter Wurm’s triggered ability begins to resolve, no player may take other actions until it’s done. Notably, opponents can’t try to change your library after you scry but before you reveal the top card of your library.

7/14/2017 For cards in your library with in their mana costs, X is considered to be 0.

7/14/2017 The converted mana cost of a split card is determined by the combined mana cost of its two halves.