Starting at rank 4, Celestial spike gains a training requirement that, even if all other kinds of training are completed, you still need to fulfill 4 times.
That training is 'Defeat Apostle with Divine damage'.
I cannot find out how to do this without some lucky timing, as Setting party finish to Any in the Solo raid and then using it to finish doesn't fulfill the training.
And the spike's damage ticks for 11 each time.
It's really really bad...
So, how would you go about actually finishing off an apostle with such a weak skill?
[SIZE="1"]If only Divine damage ignored the apostle's damage reduction...[/SIZE]