I dont get a few things, how do I get higher level traits and monster hybrids ? With hybrids, I checked the wiki on what combo's you need to do (with what stats) in order to produce one, but I still havent gotten even a single hybrid in around 10-15 offsprings.
Regarding Hybrids, according to the wiki, even when you have the right combination, you still have only 40% chance of making a hybrid.
As for increasing the traits, you need to catch wild nephs with those higher tier traits. You need to increase the world level for that species to even get a shot of higher tier traits (common nephs seem to have 0% chance of anything higher than tier 1). For that check the quote below. Also, it seems that if you want to breed a high tier trait from one race to another, you need to breed high rarity nephs, as the trait tier limitation seems to also apply to breeding. So if you want to get a neph with a tier 3 trait through breeding, you need to have both parents as Rare at least. When I was trying to get that Akabeko for the Orc Chieftain, I breed a rare Bovaur with tier 3 fertile, with just a common Foxen, and the resulting offspring was common with tier 1 fertile trait :/
The way you increase the level of the traits of the Nephlym is to capture them and then release them (the option is in the barns for your Nephlym) into the wild again. Each Neph has a value, based on their level and traits, and when you release them it adds to the points for the world level. You can see the world level, points, and value of a Nephlym by hovering your mouse cursor over the level stat for the Nephlym.
The world level is independent of each separate race.
So, releasing a dragon into the wild will raise the world level for dragons only and releasing a foxen will raise the world level for foxen only.
I'm starting to think that the game is not any good at explaining it's mechanics right now...