Surtling core

==Availability==
* In Burial Chambers
* Dropped by Surtling
*Recycling the materials of bonfires in captured Fuling Villages.
* Random chests
* Chance from destroying/recycling world Dvergr lanterns
==Usage==
*Crafting:
**Dvergr lantern
**Staff of embers
*Building:
**Blast furnace
**Bonfire
**Charcoal kiln
**Portal
**Smelter
**Stone oven
**Ward
*Miscellaneous:
**Firework
cs:Jádro Surtlinga
ru:Ядро суртлинга