Hi gogo, thank you for the warm welcome! :)
I play Sacred since... 2009? Something like that. I always played it in single player, but I talked about it a lot with some of my friends and with my little sister too, to whom I introduced the game. So I know builds - but not with the names you mention them, I guess.
My favourite Vampiress build's first priority is to conjure as many bats as possible and then the wolf companion. Skills are the ones with regen time reduction and the rest are like armor, agility, sword lore, I don't remember the others. This build is extremely fun to play, as you usually just stand in one place, summon new minions when needed and watch your confused foes perish.
You probably know that Sacred 1 calculates your chance at finding runes like: Your Level x (an unknown number) - The Number of Runes You Used = %chance of getting runes out of monsters. So a level 50 Seraphim with 50 runes spent is going to loot more runes under an hour than a level 50 Seraphim with 100 runes spent. Figuring that out changed my early builds a lot, turning this mechanism of the game to my advantage allowed me to build my fav daemon: 1 rune on Flying Daemon, most of the runes on Hell sphere and some on blazing disc. With this method in mind, I could build a daemon with skills way abowe her level and so above her opponent's level. A 4-combination of high level Hell Spheres solves bosses just like Alexander the Great solved the Gordian Knot. All I needed was a good supply of yellow potions. Skills are all defensive with sword lore, so sword and shield combo protected my daemon further.
I use this method in Sacred 2, but not sure if I need to.