Sorin, Grim Nemesis

[+1]: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its mana value.
[−X]: Sorin, Grim Nemesis deals X damage to target creature or planeswalker and you gain X life.
[−9]: Create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the highest life total among all players.

Shadows over Innistrad Remastered

+1: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its mana value.
−X: Sorin, Grim Nemesis deals X damage to target creature or planeswalker and you gain X life.
−9: Create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the highest life total among all players.

Secret Lair Drop

Shadows over Innistrad

+1: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its converted mana cost.
−X: Sorin, Grim Nemesis deals X damage to target creature or planeswalker and you gain X life.
−9: Put a number of 1/1 black Vampire Knight creature tokens with lifelink onto the battlefield equal to the highest life total among all players.

Shadows over Innistrad Promos

If a card in your library has {X} in its mana cost, X is considered to be 0.

In a Two-Headed Giant game, the highest life total among all players is the highest life total among all teams.