Its simple, when a monster evolves their hit points and base melee attack damage goes up. But to gain points for abilities a monster has to take down a hunter, and Laz revives wouldnt count against the hunter. This would give monsters incentives to fight at early stages, and reward them. It could be any variation of this, infact i’d leave the math up to the pros.
This doesn’t really work. The monster wants to avoid stage 1 fights at ANY cost, because they are at a big disadvantage fighting the hunters. If the monster spends any time trying to take out a hunter, he gets domed and subsequently obliterated.