Fire Eater's Hearthstone
Source: Other. Some random info: - is new to the 2019 Midsummer Festival holiday event and costs 300 .
The 
Fire Eater's Hearthstone is a Midsummer Fire Festival toy introduced in 2019 that functions as a Hearthstone with a unique animation, purchasable from the Midsummer vendor in your capital city for 
300 Burning Blossom.
Guide awaiting review
Visit Midsummer Vendor
During the Midsummer Fire Festival, head to your capital city and find the Midsummer Supplier (Alliance) or Midsummer Merchant (Horde) to browse their wares.
Purchase with Burning Blossom
Buy the Fire Eater's Hearthstone for 300 Burning Blossom. To earn currency quickly, desecrate enemy faction bonfires around the world for 10 Burning Blossom each — more than the 5 you earn per honor of your own faction's bonfires — and complete the two new Battle for Azeroth bonfire achievements for a bonus 45 Burning Blossom.
Tips
When channeling the hearthstone, your character holds a torch, blue fire appears beneath your feet, small fireworks shoot above your head, and you are dressed in the Tabard of Summer Skies (Alliance) or Tabard of Summer Flame (Horde).
