Immortal Realms: Vampire Wars

Skirmish is easiest and it has been brought to my attention you can get many of the battle based achievements in one go:

Clan: Dracul, Lord: Famed Spellsword (lvl 10), no allied units.

Weapon: Essence Reapers, Ring: 2x Ring of the Seven Sons, Body: any 10 Armor, Helmet: The Cage.

Spells: "Rampage" with 40% attack (must have for overkill) and "Blood Drinker", besides that just take anything that gives you "% attack" or utility (optional: get 1 defensive spell like shield or terror)


Enemy:
Clan: Nosfernus, Lord: Nosfernus Pawn (lvl 1), Units: 6 Skeleton Warriors


Turn 1: Start the match, don't move, wait until the enemy finished his turn, move between the enemies and end your turn.

Turn 2: Buff yourself with "Rampage" and "Blood Drinker" and other spells that buff your damage, you can easily one shot all enemies now.



Original solution:

Army 1 (You):

Clan - Dracul
Lord - Power Hungry Nobel (LVL 10)
Item, Weapon - Essence Reapers
Units - 2 Acolytes (more if you are having trouble, just to heal your Lord)

The rest doesn't matter

Army 2 (CPU):

Clan - Nosfernus
Lord - Nosfernus Pawn (LVL 1) <---- Just don't select any level and it will be automatically lvl 1
Units - 3 Death Cultist


Start the match, kill everyone (using only your Lord to do damage) and the achievement pops.