If I understand, you are describing a sharklike thing that swims through snow/ice. Because reading your post I thought it would be cool if the "monster" were just a spirit, like the spirit of a shark and the spirit remembered the concept of shark. The spirit could tie itself to ice and snow, and become a shark... So the ice under someones feet could sprout a fin and turn into a shark... That way an ice shark could exist without destroying the ice... the spirit of the shark would translate through the ice until it wanted to jump out, in which case a shark shaped bit of ice would jump out of the snowy ground and attack someone. Go to Comment
They would need to be moderately intelligent to manipulate people to produce heat for them. So yes, the mage might be in trouble (or they could manipulate the people around them to make his life complicated).
They like any heat source they can get. RE the 'However many times they will "cultivate" living things, helping them so they can absorb the heat they generate.' and 'Some more intelligent and tame ones will make light for caves and the Humans inside the cave somewhat peaceful, all in exchange for extra heat from its fire. ' Go to Comment
I am not sure they would "eat" each other. However, their intelligence seems to be somewhat variable. Some are pretty simple, while others have an animal cunning, while others a Chimpanze or Dolphin intelligence. It is more than just heat absorbed.
I think their intelligence would be based upon the amount of contact with intelligent minds. Perhaps their empathic abilities create a link between them and the other minds. The more contact with intelligent minds, the more "intelligent patterns" they would absorb/ duplicate in their own matrix. The smarter they are, the more efficient they can be at manipulating emotions, thus spending less energy for the effect. Thus the crafty old ones could be pretty dangerous. Go to Comment
That is a nice touch. Consider it adopted. (can't believe I didn't say that a year ago)
The size and the brightness determines the intelligence. Since size and brightness is directly related to the amount of heat taken in, it is a darwinian development (those that can absorb enough heat get smart enough to be able to absorb more, those that can't shrink and go away).
So a Blue Fire could "canabalize" itself, sacrificing some intelligence and processing power for a few more days of subsistance. Go to Comment
Actually, relating to Iain's comment above, perhaps this could be related to the elementals eating other elementals thing that was discussed a while back? Perhaps they eat each other and thus grow in size, intelligence, AND in power. So they must "eat" more heat to survive, but they also can affect emotions more. Comments? Go to Comment