Complex sentence: More fierce wildlife which can be dangerous include elephants, bears, unicorns, giant spiders and wolves, random creatures like vampires, hydras, titans, dragons (which can cause fires) may attack a thriving fort.
Split into simpler sentences: More fierce wildlife which can be dangerous include elephants, bears, unicorns, giant spiders and wolves. Random creatures like vampires, hydras, titans, dragons (which can cause fires) may attack a thriving fort.