Cheapest priced copy (Double Masters 2022): $3.99 at Card Kingdom, near mint, their price list as of .
Necrotic Ooze 
Creature — Ooze · 4/3 · Rare · Scars of Mirrodin · #72
As long as this creature is on the battlefield, it has all activated abilities of all creature cards in all graveyards.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
4 printings · $3.99 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters 2022 | 83 | Rare | $3.99 | $8.99 |
| Double Masters 2022 | 441 | Rare | — | — |
| Secret Lair Drop | 133 | Rare | $17.99 | — |
| Scars of Mirrodin | 72 | Rare | $4.99 | $14.99 |
3 rulings from Wizards of the Coast
- 1 January 2011Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities; they have colons in their reminder text.
- 1 January 2011If an activated ability of a card in a graveyard references the card it's printed on by name, treat Necrotic Ooze's version of that ability as though it referenced Necrotic Ooze by name instead. For example, if Cudgel Troll (which says "{G}: Regenerate Cudgel Troll") is in a graveyard, Necrotic Ooze has the ability "{G}: Regenerate Necrotic Ooze."
- 1 January 2011Necrotic Ooze gains only activated abilities. It doesn't gain keyword abilities (unless those keyword abilities are activated), triggered abilities, or static abilities.