I know that this topic existed before, but nvm.
Lets start with Death Knight.
I will use Unholy Build for example:
-Icy Touch is dealing frost damage.
-Plague Strike is dealing shadow damage.
-Death Coil is dealing shadow damage.
-Chains of Ice also dealing frost damage.
Now attacks that increased effect combined with DBW -Blood Strike is dealing physical damage.
-Scourge Strike is dealing physical + shadow damage.
-Melee Attacks are dealing physical damage.
DBW proc's are great for Death Knight cause of strength (Our main stat), Critical (something we need specially vs healers) and haste which increase our melee attack speed, attack speed of our pets etc.
The solution: Deathbringer's Will is great for Death Knights. Lets start now with Paladin.
I will use Retribution build ofc:
-Consecration is dealing holy damage.
-Judgment is dealing holy damage.
-Hammer of Wrath is dealing holy damage.
-Exorcism also dealing holy damage.
Now attacks that increased effect combined with DBW -Divine Storm is dealing physical damage.
-Crusader Strike is dealing physical damage.
-Melee Attack are dealing physical damage.
DBW proc's are great for Paladin cause of strength (Also, main stat, combined with wings makes it insane), Critical (something they need as much as any unit) and haste which increase our melee attack speed, cast speed etc.
The solution: Deathbringer's Will is great for Paladins also. I am sure you notice how both classes have 3 attacks bound to DBW and 4 attacks that are independent of DBW. And how proc is great for both of them.
Now, feel free to correct me If I am wrong, but I am pretty sure in my statement
P.S Trolls, please avoid this topic.
Great! 
