[Gatts]

On impossible I try to hit +10%XP (mostly I abandon this unless I get many mind runes from srhines/lying around), then I do not invest in Mind at all

In Might - I try to level up to max "undead commander" but it is hard to get there first 10~15 levels... otherwise I do not take from might anything else (again, If I have some spare runes, I would go for more rage and rage XP bonuses... )

For Magic:
I try to get Chaos ASAP (meaning I can have it mostly till level 4 -> when I search the three lands and all dungeons, avoiding most battles)
Then as next is "HIGHER MAGIC" (which I keep on first level for very very long time)
After 1 level of higher magic I hit 3rd level of CHAOS magic (if I am lazy to wait for the right combination of runes for chaos level up - I buy order or distortion... or if I have better spells... like phantom...)

I always take INT, MANA, RAGE (in this order if I have to chose, sadly I have very often INT / MANA, then ATT/DEF ... pf)
I absolutely do not value att/def/leadership (leadership I start value above level 20)

I always go for fastest units -> undead with Rina and undead commander 2+ are the best (from early in the game you can hold the initiative till the bitter end)... of course Anga's Ring + fearies/dryads are better, but they can't suck blood, can they? (of course most players like them more... let them all be my guests)

I always cry like a baby when I realize I can't have more weapons (Rina goes first for me... so bye bye Xeona), but still I stuck all my artefacts towards INT... so I usually have more INT on level 18 than 33... (but nearly never more than 40 INT... 35~38 is the average on level 15~20) Later in the game are less end less shrines/ due less lands to explore, so you rely only on level ups.. and INT can come max each by-level... if you are lucky

I do not care about Leadership till the bitter end of game, not that I would not miss it... but I could use my INT much better than more units