> For the complete documentation index, see [llms.txt](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/nft-assets/extractor-card.md). # Extractor Card Extractor cards are active-like assets that act as intermediaries between [actives ](/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/nft-assets/active-card.md)and [constructions](/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/nft-assets/construction-cards.md). They can be obtained by opening some [Starter Pack](/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/packs/starter-pack.md). Each extractor represents a small facility that can be placed on a land to improve resource extraction. Extractors share the same attributes as active cards. Unlike constructions, they do not increase the size of a land. However, similar to construction cards, they apply a bonus on resource production, which is cumulative if several extractors are placed on the same land. Each extractor card bears a specific level and a unique rarity. Improving the level and the rarity of an extractor card enhances its statistics. **Extractor cards don't have a maximal supply.** Each extractor card has a similar template containing key elements:

Overview of an extractor card and its several attributes.

Number	Name	Description
1	Name	Indicates the name of the extractor.
2	LVL	Level (LVL). Each extractor bears a level between 1 and 5. Once an extractor card reaches level 5, it is possible to improve its rarity.
3	GRD	Grade (GRD), also called 'Rarity': Each extractor card bears a rarity Common (C) and Ultimate (U). Better rarity means better extractor card.
4	RESM	RESource Mining (RESM): This value, generally between 3 (bad) and 15 (excellent), indicates how effective the card is when it comes to resource extraction.
5	PWR	Power (PWR): Indicates the damage the card deals when attacking other players.
6	ENR	Energy (ENR): Indicates how quickly this card can be played when facing other players.
7	NFTM	NFT Mining (NFTM): This value, generally between 3 (bad) and 15 (excellent), indicates how effective is the card when it comes to NFT extraction.
8	ICON	Allows quick identification of where the extractor operates (ground, air, water etc.)
9	Description	Indicates the bonus that each extractor grants to the operation. Bonuses are cumulative, meaning that if several extractors are placed on the same land, their bonuses add up.