The faction board looks great, you really captured the feeling of the woodland at night.

I'm a little confused by some of the cards, they seem to be one time effects but some of them could use some clarification. Are concerts the same as the rewards cards? When a concert has the same number of warriors as it's level the concert is held in the Host step? And then any players with tickets can give them to the fireflies to receive the cards as rewards?

Some of the cards have interesting effects, but a lot of them probably need to be reworded to fit in the game. Tremor says "All players take 2 damage or shake their tails", what does that mean?

Very interesting faction and I like the idea of fireflies luring woodland creatures to mysterious concerts.