Sacrifice green shards to light it and restores energy faster. Right now it’s every 3 minutes per 1 could reduce it to 1.5 minutes or 1 minute. 

Sacrifice heroes, wisdom bar shown up to fill, in the middle - chance for rare tome, when full 100% - epic tome (a lot of sacrifices to fill meter).

Training campfire:

- Fight PVP against your own defence and fight against your clan member defence teams.

1. Use champions as well as new materials sold at the market to produce chickens. Rank of the chicken depends on the materials & champions used, but is always at least +1 towards the champion used
   
2. Turn the campfire into a flaming beacon, e.g. using a new material available through events or preferably the market, increasing chances of "attracting" champions - e.g. increase likelihood of finding champions within campaign/dungeon - better probabilities for shards would be too much to ask :D
3. Use it as a temporary event anchor, telling players what side events are currently running, e.g.
• Beer Barrel - Better chances to find brews --> for this to actually be well accepted by players, brews should be made additional drops, rather than replacing gear, accessories or potions
  
• Alchemy Table - Chance of receiving additional potions when raiding keeps
  
• Goldsmith - Increased chances on finding a particular type of accessory from Spider's Den