Help with first run

[Agrippa]

Hello. I've only recently discovered this series and am enjoying so far. For my first serious run, I'm planning on using a warrior on easy difficulty. I want to fully explore all of the branches and such and I understand this is impossible to do on more difficult settings. I might get bored by the easy encounters, but please keep in mind this is my first run and I'm mainly focusing on exploration.

As a warrior, it will be fairly critical to unlock the rage abilities as fast as possible. If possible, I'd like to unlock all of the rage powers by level six (in future runs on more difficult settings, too). I've figured out unlocking the lizard man rage. Trying to unlock the weapon rage at level three was a bit much, but any tips on his challenge would be appreciated. I've no clue on the mage adventurer chick or the reaper. Can I unlock these two by level six also? Spoilers are welcome for unlocking the rage abilities.

As I posted in another thread, I'm interested in possibly doing a no casualty run. This, of course, depends upon if there's a significant score bonus for doing so and whether or not it means no casualty armies or units. Heh I'm not about to try a run that wouldn't lose any units, but I would be interested in them if it means not losing any armies.

So. In the tutorial, how are people doing the dragon and necromancer battles without losing any units? I've beaten the dragon without losing an army, but he's always taken a number of units down. The necromancer does his axe thing on my weakest army and has one shot them every time. So how are people beating that one? Again, I'm not really interested in not losing units, but I'm amused that I'm struggling to get through the tutorial without losing an entire army heh. Any tips and suggestions are appreciated.