Gw2 | Slothasor | Power Boon Chronomancer (Quickness/Alacrity)

Power Mesmer has easy access to cc via Greatsword#5, F3, and Gravity Well. I also bring Signet of Domination.
The heal boon Chronomancer and me take care of Slubling control via Focus#4. Slublings spawn every 30s (xx:00 and xx:30 boss timer), so I make sure to be on Dagger/Focus at those times. The healer pulls the Slublings together and I follow up to pull them into the boss (see 0:31, 1:01, 2:03). Sadly, as always, those pulls can be intercepted by other hard cc skills (see 1:35).
Distort on F4 can be used to block a lot of the shacke "projectiles", which again the heal boon Chronomancer and me take care of (see example at 1:08).
Sadly, I was not able to pull the boss out of the poisonous ground when I got tank at 1:06 due to Slothasor becoming animation locked with the shake and breakbar. This lead to the group being split, therefore not having Stability on everyone, and people getting feared off, downed, and dying. However, there's nothing I could have done about this, instead this could have been avoided by proper positioning of the Stability provider in the affected subgroup.
Log: dps.report/F5S...
Build: gw2skills.net/e...
Disclaimer: Select the Chrono grandmaster trait Stretched Time for Alacrity or Seize the Moment for Quickness. The infusions aren't strictly needed (without them you lose 90 power).
0:00 100-80%
0:26 80-60%
0:48 60-40%
1:16 40-20%
1:46 20-10%
2:05 10-0%
Music:
Track: Asketa & Natan Chaim - More [NCS Release]
Music provided by NoCopyrightSounds.
Watch: ncs.lnk.to/more...
Free Download / Stream: ncs.io/more

[@Raviix_Vs]

you should play moa + well of selinity for more cc
then you also should use ur 2CS to finish CC and stack ur clones / burst during the 3d cc :p
GJ on disto for shaky

[@XmantiX]

What is up with the reaper? He runs greatsword and yet not once did he swap to it after the opener? Why?

[@Nanax3]

They were one of the players we picked up via LFG, so I can only make assumptions here. Looking at other logs from that evening, they did usually properly rotate between weapon sets on those bosses (I did not check their whole rotation, just if they did in fact weapon swap like SC suggests). In the video, they were one of the players who got feared off at the 40% breakbar even though their positioning was correct and helped rezz up a downed player later on. They were also in the non-healer sub in which boon uptime, especially on defensive boons (regeneration, protection), wasn't great, and were on low health for quite some time before entering shroud - basically their 2nd health bar, preventing them from getting downed. Additionally, on Sloth there are frequent breakbars which mess up / lead do breaks in rotations. So, all in all, while obviously there's room for improvement rotation-wise (which there is for almost every player), I'd say it was a mix of multiple unfortunate factors which lead to this particular gameplay.
Your question suggests that you (only?) looked at the Simple Rotation tab in the player summary of the Reaper player. If you did not already do that, I'd encourage you to have a look at the combat replay tab (at the top next to the boss overview), select the player (click on it in the group overview on the right), activate "show buffs" and check the "conditions" checkmark (above the group overview), and start the combat replay by pressing on play below the map in the middle. That way you can observe almost everything that player was doing and get an idea for stuff that cannot easily be seen by looking at the rotation alone (such as their hp, boons, conditions, positioning, which boss mechanic happened when, etc). In fact, arc dps logs provide tons of information if you know where to look, which is what makes them so great!