Originally Posted by
DirewolfX
Against raid bosses? Not really. ~30k for a DF as is. 150% bonus to it would be only 75k. Each ice lance would add ~9k more damage. So you can consider it as if the ice lances to an extra 9k each on a delayed timer. Due to the current mechanics, you're only likely to get one or two extra ice lance off between deep freezes anyway. If you sacrifice a DF to stack the buff higher, you're losing out on damage in the long run to see bigger numbers.
In PvP, you might stack the buff to 150%... which would do a whopping ZERO damage. Hooray for no PvP balance changes.
Anyway, numbers are just pulled out of my buttox. The idea is the buff should be large enough that Ice Lance + bonus to the next Deep Freeze is decently higher than Frostbolt to make it worth the risk of doing an Ice Lance instead of DF when DF is on cooldown.