Oh, I completely messed up Sigrif's build)))))
Logistics, Attack, Defense, Luck, Wizardry)
Logistics – for attack with teleportation; I don’t remember why anymore. Well, and the next skill so as not to waste turns.
Attack – Obvious. But it seems like I had to switch to ranged attacks, which is pointless in this regard for a tier 5 unit.
Luck – standard.
Wizardry – I had to invest points into counterspell. There was no choice.
Defense – I also seem to have taken it by chance. But I reached preparation, and in principle, the devil almost didn't attack my army at the end of the game)))
The build is crazy, but to be honest, I never used a mentor (even if he was on the map).
However, as I already wrote, the phantom and high defense decided the outcome of most battles on the map.