Cheapest priced copy (Shadows over Innistrad): $4.49 at Card Kingdom, near mint, their price list as of .
Sorin, Grim Nemesis 
Legendary Planeswalker — Sorin · Mythic · Secret Lair Drop · #400
+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 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.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $4.49 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadows over Innistrad Promos | 251s | Mythic | — | $15.99Out of stock |
| Secret Lair Drop | 400 | Mythic | $7.49 | $7.99 |
| Shadows over Innistrad | 251 | Mythic | $4.49 | $6.99 |
2 rulings from Wizards of the Coast
- 8 April 2016In a Two-Headed Giant game, the highest life total among all players is the highest life total among all teams.
- 8 April 2016If a card in your library has {X} in its mana cost, X is considered to be 0.