Elemental Scaling in Cataclysm: Clearcasting

The special advantage of this site is that it is a professional World of Warcraft gold site for players, and cheap WoW gold can be available here. The uptime for Clearcasting is easier to work out for Cataclysm than in Wrath because there are no spell-specific critical strike bonuses. First off, we know that the Lava Burst cooldown is 8 seconds. With 15 percent haste, the bolt cast time is 1.66 seconds (2 / 1.15 / 1.05, the last value is the 5 percent raid haste buff) so we can cast five in that 8-second window. To ensure the third burst is cast as quickly as possible, the fifth bolt in the second set is dropped for another Flame Shock (although since the Flame Shock DoT will be shorter with haste, the rotation won't quite be like this, but it gives a rough estimate which is what we are going for here). This gives us a total of two bursts, one shock and nine bolts, for a total of 12 spells.

Next, we work out the average number of critical strikes in that sequence. We have two 100 percent chances from burst, and 10 35 percent chances from the other spells (base 25% + 5% debuff + 5% buff). Ten times 35 percent gives 3.5, so we'd expect to see 5.5 criticals for every 12 spells cast. Since Clearcasting is a two-charge buff, we can double that to 11 charges for every 12 casts.

However, you can and will get two criticals back to back, which will cause the loss of an expected charge. To work out the chance of that happening, we need to split it into two parts. Firstly, the chance of one of the spells either side of the burst cast being a critical is 35 percent, which means we have 4 35 percent chances of a charge loss. Secondly, the chance of a double critical for the other spells is 0.35^2 (or 35% times 35%) or 12.25 percent.

This gives us 11 - 2.38 charges, or 8.62 charges for every 12 spells, an uptime of 71.83 percent. It's important to remember that this uptime is on a spell count basis, not the time basis that you would see on World of Logs (not to mention that the combat log timestamps are not very accurate). This uptime means we'd see a 7.183 percent damage increase from clearcasting, on average. Don't forget to buy WoW gold on this WoW gold site.