I was thinking about how a hunter would know what abilities a monster would have without the monster doing it. So I thought about slight variations that could be given to the monster once they fully upgrade an ability. This would be a great way to give the hunter a subtle hint of what they are up against.
For example, if the goliath maxed out his fire breath, flames could be seen coming from his neck or if the kraken maxes vortex small gusts of electrical wind would circulate around the kraken. Another example would be for behemoth maxing lava bomb and having lava flow from his crevices and wraith could have glowing hands once abduction is maxed.
I think this would be a great idea to give the hunters an idea of what they should watch out for, because the only other way to know is have the ability done and by then it could be too late. It would also make the monster look cooler IMO.
Let me know what you think about this idea and any ideas for monster variations that could be used.