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Resource • Morytania
The blackened heart of the Grotesque Guardians.

Black tourmaline core
Epic8%Epic card in the Old School RuneScape TCG (OSRS TCG)
“The blackened heart of the Grotesque Guardians.”
Black tourmaline core is a Epic card in the OSRS TCG, the Old School RuneScape trading card game played through the RuneLite plugin. It takes its art and stats from the in-game item, which is worth 41 500 gp. The catalogue files it under Resource and Morytania, and packs in the plugin land on a Epic card roughly 8% of the time.
- Categories
- Resource, Morytania
- Value
- 41 500 gp
- Tradeable
- Yes
- Equipable
- No
- Stackable
- No
- Quest item
- No
- Options
- Inspect, Drop
- Card score
- 41,500
Black tourmaline core card — frequently asked
- How rare is the Black tourmaline core card in the OSRS TCG?
- Black tourmaline core is a Epic card. Packs in the TCG plugin land on a Epic card about 8% of the time. Rarity is not assigned by hand: every card is scored from the in-game item's value, or from a monster's combat level, and the tiers are percentile bands within its own group — items are ranked against items and monsters against monsters, because a boss's level and an item's price are not the same measure.
- What is the Black tourmaline core card worth?
- The in-game item is worth 41 500 gp, which gives the card a score of 41,500 and puts it in the Epic tier. What it is worth to trade is whatever another player will give for it.
- How do I get the Black tourmaline core card?
- Open packs in the OSRS TCG RuneLite plugin and hope for the pull, or trade for it. A Standard Pack costs 2,500 credits — earned by playing Old School RuneScape — and reveals 5 cards, each with a 1% chance by default of coming out foil. On OSRS Card Exchange you can post an exchange offering a card you have spare and asking for Black tourmaline core, and anyone holding one can make you an offer.
- Can I trade the Black tourmaline core card with another player?
- Yes. This site matches the two of you and hands over a party passphrase; the cards themselves change hands in the TCG plugin's own Trade window in game, not on the website and not through the standard in-game trade screen.