How to beat my friends malefic skill drain variant deck?

try focusing on chamberlin of the six samurai and non spell-casting area! this still lets you use other six samurais but with non-spell casting area you can use dark hole to kill the opposing monsters, leaving them unharmed and they have no effect to negate! Also you can sacrifice them to keep your other samurais from being killed by dark hole! Plus with that you can try to swarm the field and use Six Strike Tripple Impact to destroy the monsters or field spell leaving the malefics gone for a while! So go for some Storms of ragnorok or Strike of neos boster packs for your answer!