Executioner is getting changed to armor penetration rating, which is % reduction based. Any % reduction in armor translates to a % increase in damage, not a numeric increase in damage. The reason why it's not good isn't the scaling, it's just that there are better options. Are warglaives good? Yes. Should anyone use them when they have naxx25 weapons? No. Executioner is the same idea.Originally Posted by bbr
With reference to the post someone made above about berserking having a 15s uptime for each minute, ppm mechanics have misleading values. PPM mechanics can activate on special attacks, which for most melee classes, are used quite often. Much like mongoose has a ppm of 1 and a realistic ppm closer to 2, berserking is flat out better than massacre unless armor is a consideration.
Even if berserking was worth 100 static ap (which it isn't), it would still edge out massacre as you can use speed potions during the proc to effectively gain extra dps over a normal speed potion activation, not to mention timing the proc with other haste/crit/armor penetration cooldowns.
Long story short: Mongoose is still godlike for raiding rogues, but berserker is better. For other dual wielders, berserker is better past special hit cap, and +25hit/+25crit is about as good as mongoose. For 2hand users, berserker is the best enchant.