Cheapest priced copy (Commander 2015): $1.29 at Card Kingdom, near mint, out of stock, their price list as of .
Necromancer's Covenant 
Enchantment · Rare · Alara Reborn · #82
When this enchantment enters, exile all creature cards from target player's graveyard, then create a 2/2 black Zombie creature token for each card exiled this way.
Zombies you control have lifelink.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $1.29 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Alara Reborn | 82 | Rare | $1.49 | $4.49 |
| Commander 2015 | 229 | Rare | $1.29Out of stock | — |
2 rulings from Wizards of the Coast
- 1 May 2009Necromancer’s Covenant grants lifelink to all Zombies you control, not just the tokens put onto the battlefield with its first ability.
- 1 May 2009The Zombie tokens are put onto the battlefield under your control.