The talent in destruction named blistering agony must be reworked.
While the 20% additional dmg for shadowburn is effective, the second part of the talent is completely meaningless because it claims to increase the critical strike chance of targets at or below 30%, by 50%. BUT!!! The talent shadowburn has a 100% chance to critical strike on a target at or below 30%.
Thus, a 50% increase chance to critical strike a target at or below 30%, provides no benefit, because it was already guaranteed.
read the talents
shadownburn alone gives +50% crit to targets under 20%
the talent blist agony gives an additional +50% crit to targets under 30%
does it make sense now
What you’re missing is that when you’re talented into Blistering Agony the tooltip for Shadowburn is updated to reflect those enhancements.
Without Blistering Agony you’ll see that Shadowburn is only 50% crit chance below 20% health.
Ah ha! I see.
I did not realize that the talent description was changed upon the selection of another talent.
The only nonsensical oversight is your own, good day sir.