Please consider demon pet excluding from summon cap ,if its possible. I know lord of demons from rune are strong and player can summon 2 lords using one rune. For this reason iam not gonna waste 20 LP and 10k gold on demon pet that would break summon limits in combat
Why? You can't summon pack of skeletons
and 2 demons at the same time, right? Same with demon pet - at one time only one or another.
Demon pet is alternative to ordinary demonology/necrosummon - if you have lack of LP, you can spend them to him, or to ordinary demonology, or to skeletons/zombies.
I think he is more interesting than ordinary, because he should be trained to be strong. In current playthrough on SnC with few LP, I use only damaging spells, him and staff/sword.
even early in the game zombies or ordinary skeletons are much more useful than partly trained demon pet : (
Train him further! He grows very fast up to level 60 (faster than you, I mean). By the end of the second chapter, he will be much stronger than "early in the game zombies or ordinary skeletons" and can beat bosses (with your help of course). And by the end of the third chapter he will be stronger than ordinary demon.