Multiple charges/hits

"Flame Burst and Shock will only contribute one skill use regardless of how many enemies are hit."

"Multiple charges of alchemy will only contribute one skill use when used."

Not so sure about Shock but I've noticed that when I use a rank 1 Full Charge Flame Burst and hit two enemies, if I immediately use 1 water cannon charge, Heat Buster would be ready. This has happened several times. I also had no inital alchemy charges used before using Flame burst. I tested it by waiting a full 2 minutes with no Alchemy used, started the room with Flame burst loaded fully and hitting two enemies followed by the Water Cannon and Heat Buster was ready to be used.

Update: The multiple enemies do not contribute but the multiple charges do. A single charge Flame burst followed by two Water Cannons will activate Heat Buster while a full charge of Flame Burst only needs 1 Water Cannon to activate Heat Buster. Uploading a video now.

Edit: Video Proof http://www.youtube.com/watch?v=SZKwtDEmNNA

Does this only work with flame burst? I have never had that happen on KR, but maybe its because I have very high latency so using consecutive skills is difficult.

I don't know for Shock as I yet to have it. Maybe another could test and answer.

But if you mean multiple charges like Water Cannon, there appears to be similar to Flame Burst's but requires further testing on my part, I'll get a video of that one too. What I do have so far that for a Full Charge Water Cannon, 2 more blasts triggers Heat Buster instead of 3.

Edit: Confirmed. Water Cannon contributes to multiple uses to Heat Buster activation. Video here: http://www.youtube.com/watch?v=y5KgW9bdf1s

I would like to add that flame burst actually adds 2 skill uses at 1~4 charges, as well as the three skill uses at max charge. This is most likely due to the long duration of flame burst causing the user to lose one skill use before flame burst finishes. With 2 skill uses it balances out to one skill use in most cases.

Yes but if you use Flame Burst as a starter, you won't lose that skill use since you get it after the skill ends. Then you have roughly 5 seconds to use Water cannon or Wind Blast. Heat Buster will trigger after that.

It also depends on what you use after Flame burst, if you use flame burst again then you will probably lose a skill use but if you use any fast load alchemy skills like the two I mentioned above, you could keep it going.