The Cloud Deck (Extreme): Diamond Weapon
This page will provide advice and optimisation tips for The Cloud Deck (Extreme) - Diamond Weapon.
With additional contributions from Liaa Lia (Mateus).
Before You Begin
Note that the example GCD sequences shown assume the 2.48s GCD tier.
Differing GCD tiers will likely create some conflicts with the micro and macro level alignments that you attempt to perform if you strictly follow these examples.
5.5 Build Recommendation
With the first phase of the encounter maintaining a static timeline and having a prolonged downtime phase before reaching Phase 2, the opener will generally be set to one specific GCD sequence for optimal alignment purposes.
Initial 6 GCDs
The initial 6 GCDs will set up a 2nd GCD Dreadwyrm Trance opener, with a 1st GCD Energy Drain to allow for 4 Festers in the opener Potion window.
This sequence will also generally follow a 6th GCD Bahamut timing, although adjustments can be made in the event that you’re required to teleport to the other platform during the opener.
Adjusting for Teleport
If you are forced to teleport in the middle of your opener for the first Diamond Rain mechanic, the opener sequence may be adjusted for a 7th GCD Bahamut timing instead, allowing you to leave the 6th GCD open to teleport over.
If opted for, the first Fester should also be weaved with the 6th GCD, just before taking teleport. Since the teleport animation does not take up the full GCD cooldown, this weave should be fine with proper timing while avoiding any GCD clipping.
The initial Bahamut rotation should follow the sequence shown above.
This sequence will use a 2nd Ruin IV used early to weave the 2nd Fester before buffs disappear, with Swiftcast used to handle the Miasma III cast so that Energy Drain can weaved as it becomes available.
Adjustment for 7th GCD Bahamut
If you are forced into a 7th GCD Bahamut timing, the sequence will play out slightly differently, although it will function more or less the same as the other sequence shown with a 1-4-3 Bahamut rotation.
Phase 1 will provide full uptime until the boss goes untargetable at ~2:47, and not returning for roughly 30 seconds at ~3:17.
Due to this timeline delaying the 2nd FBT timing until after 3:17 regardless, this means your Phase 1 alignment can follow both 60 + 55 (hybrid) timings, or 120s timings.
The opening sequence already provides the Tri-Disaster clip necessary to play into either of these two timelines, although the 60 + 55 timeline may feel easier for some players as the 2nd DWT being available a few seconds sooner will perfectly align for the next Adamant Purge sequence.
Ruin IV Usage
Before the boss jumps away to begin Phase 2, you should use your remaining Ruin IV procs until you have 1 proc left.
After the boss jumps to become untargetable from Code Chi-Xi-Stigma, the next phase of the encounter will be split into several small uptime windows, as the boss will perform multiple mechanic combinations in between while untargetable.
Since these uptime windows will maintain a static timeline, as well as a static timeline from Phase 1, the GCD sequences during these uptime windows will generally be consistent on every pull.
The initial P2 reopener will be a 13 GCD uptime window, with the boss returning at ~3:17.
Using Energy Drain in your first GCD’s double weave is a must as this timing will allow you to use your next ED cooldown just before the boss goes untargetable again.
FBT’s timing must also follow a strict timing in the 2nd GCD for later trance alignments during P2, which pushes a precast Devotion.
The FBT rotation may also be adapted into a 2-4-2 rotation, with Aetherflow stacks held for an extra GCD depending on the raid buff timings in your group.
Uptime Window #2
The 2nd targetable window will be a 10 GCD uptime window over ~23 seconds.
During this window will be the next Dreadwyrm Trance timing, along with the next Egi-Enkindle cooldown.
Due to kill time considerations, the use of 120s cooldowns may be altered for better value and alignment with 60s cooldowns.
Reasonably fast kill times, specifically in the 8:15 - 8:50 range, and kills in the 10:15 - 10:50 range, would likely see 120s cooldown forced during this window in order to avoid losing an additional usage.
Prioritise using your Aetherflow stacks within the buff window.
Uptime Window #3
The 3rd targetable window will be a 16 GCD uptime window over ~38 seconds.
This uptime window will be the next Bahamut phase, with Summon Bahamut precast just before the boss is targetable to avoid using a Ruin IV unnecessarily, along with another set of Aetherflow stacks.
Due to the boss performing a raid wide knockback from the Vertical Cleave cast, Surecast will be used initially as this knockback would take place during your Bahamut timing.
Uptime Window #4
The 4th targetable window will be a 13 GCD uptime window over ~31 seconds.
The Energy Drain cooldown that is available during this sequence must be weaved immediately to try and gain a 2nd cast just before the jumps away again.
This sequence could even be altered into doing ED → Ruin IV, as opposed to the GCD being first, in order to gain the ED application damage at the end.
However, using this method will generally require lower ping, as any inflated animation delays will likely cause you to lose the GCD cast instead.
Uptime Window #5
The 5th targetable window will be a 10 GCD uptime window over ~23 seconds.
This will be the final short uptime window in Phase 2 before the boss will transition into Phase 3. Therefore, this final sequence will primarily use our extra Ruin IV procs, while preparing ourselves for the Phase 3 reopener.
In the event that 120s cooldowns are forced on cooldown (due to expected kill times within the range specified earlier), the above sequence will automatically place your oGCDs within that respective buff window.
Before heading into Phase 3, the Dreadwyrm Trance cooldown that will come up during this sequence should be used immediately, and finished within 2 GCDs to ensure you receive the Deathflare damage before the boss goes untargetable. You should also be preparing 3 Ruin IVs for the Phase 3 reopener.
Note: By executing the various Energy Drain timings labeled in the above examples, you will avoid delaying your ED cooldown by ~15 seconds in total, providing you with the possibility of gaining an extra set of Aetherflow stacks before the boss is killed.
After the boss goes untargetable after the 5th short uptime phase, the boss will transition into the 3rd phase with both platforms returning.
Phase 3 Reopener
The reopener for Phase 3 will be a Bahamut reopener with 4 Festers in your potential potion window.
Soon after the boss becomes targetable, the boss will begin casting limit cut numbers forcing 4 players to teleport to the other platform.
Due to the awkward interaction that SMN pets have while teleporting platforms, using the teleport in the middle of a Bahamut rotation can cause possible Wyrmwave losses.
While it is technically possible teleport without losing the Wyrmwave proc, doing so requires very specific timing and execution and in many cases, would not be recommended unless absolutely necessary.
The Bahamut timing shown above will allow you to finish the 8th GCD in your Bahamut rotation while utilising the next GCD to teleport over if needed.
With the remainder of Phase 3 providing full uptime until the boss is killed, your remaining rotation will simply follow general rotation guidelines:
- Maintain proper trance timings given your expected kill time: Be mindful not to drift your Trance timings.
- Instant-cast GCD optimisation: Be aware of the timings for mechanics which will require you to move periodically, such as Flood Ray, or the need to teleport platforms due to Adamant Purge, Diamond Rain, or Diamond Shrapnel. Each of these mechanic sections can be easily handled with proper Egi-Assault, Ruin IV, and Swiftcast usage.
- Properly align with Devotion with other party buffs: If your respective kill times are long enough to see a 4th Devotion timing, prioritise this final Devotion timing with any party buffs that may also exist and be used with the final buff window.
While the above examples will assume a 2 potion kill time, extended kill times the 9:15 time range would instead prioritise 3 potions.
In the event your expected kill time falls within the 9:15 - 10:00 range, the 2nd Tincture should be used immediately on cooldown during Uptime Window #3, allowing for a 3rd Tincture cooldown to be used just before the boss is killed.
In the event your expected kill time is over 10:00, the 2nd Tincture can be used in Uptime Window #4 instead for full FBT alignment, but still allowing for a 3rd Tincture cooldown to be used before the boss is killed.