Make fire spread in certain circumstances
We're currently on the raft mission in " The Wilding" and we've ignited a square on our raft. I think this is probably a bad idea and the raft should burn/sink. Likewise in other environments, fire should/could spread to both the party's detriment and benefit.
Aaron Abenoja commented
On the fire tiles, to . . lets say injure an enemy near a flame, maybe adding the fuel to burst the flame to spread the nearby tiles, maybe not all but a few random ones. . to interact with the shadows of the trees and just the environments itself is within itself a very fun idea