At the moment I am using this template:

100 Necro
120 SS
120 Magi
120 Music
120 Discord
120 Prov.
Lich Form instead of Med.
Jack O' All Spell Weaver for increased HP regen.

Swords Of Prosperity for 120 Weapon Skill.
@ Legendary Discord a monster with GM combat is reduced to ~72 giving them a 35% chance to hit you.

(Discorded/C-Skined Monster) Spam Omen + Fire Horn
Make sure monster is Oathed and it is better than doing weapon dmg & the combos offer more protection than parry.

Group attacks after Provo: Fire Horn 92 dmg after Corpse Skin & 113 dmg w/ Skin+Omen, Poison Strike (also amped by C-Skin), Whither.
Control: Ability to direct your mindless animates onto the monster you want when you want it to attack.
Magery: Fire Ele's go well with Corpse Skine and Omen
spam. Not only will your spamage increase dmg by 25% but it will knock your summons psn lvl up by 1.

(I don't know if this is a flaw, but your undead steed lasts forever if you start running the moment you hop on your horse and then travel through a gate/portal)