@Thornbuild crusader strikes applies a debuff on the target being hit and stack up to 5. That debuff is of the same kind as JoC, that will not work together.
this game has different kinds of crusader strike with different values of stacking +holy dmg to the target. It pretty much depends in which will be given to us. But the 5x stack should cause a+dmg bonus around 150 and deal ~ 100dmg.
My testing happened past year so i am not 100% sure about the values anymore. My server doesnt work atm after i moved to a new computer and havent tried to fix it yet.
But here is some data from the game database:
crusader strike R5 https://classicdb.ch/?spell=10337
crusader strike of a grimtotem mob https://classicdb.ch/?spell=17281
holy strike rank8 https://classicdb.ch/?spell=10333
I would like to have them both tbh =)
@MrKrissatan: I mentioned an idea for the quest involving to kill the 2 deathknights the game knows besides Naxx and a demon from dire maul!!