What This Combo Does
This is the SIRESO + MELARUM Gommage one-shot. item:maelle ends the rotation with item:gommage in Virtuose Stance at 1 HP, swinging item:melarum into a target that has been broken, marked, defenseless, slowed, and is sitting on a item:sireso S Perfection multiplier propagated from item:verso. The community ceiling sits at 2,634 billion damage against Cromatic Moissonneuse in Endless Tower trial 11-1 (a boss with a weak-on-break multiplier), and 1,756 billion against standard bosses. Both numbers were recorded post 1.5.0 Thank You Update and post the item:stendhal nerf, so the result holds at the 1.5.5 live patch.
This is the absolute Gommage damage ceiling on Expedition 33 right now. The Maelle Stendhal one-shot, on the same buff stack, depends on a Roulette 50/50 dice roll to land at full damage. This combo replaces the dice roll with a Sireso S boost from Verso's Perfection rank, which is set up deterministically over three turns. The setup is longer than Stendhal but the damage is roughly 40 to 50 percent higher and never randomly halves itself.
Run this against weak-on-break bosses in Verso's Drafts and the Endless Tower. Do not run it in Act 1 or early Act 2; the build needs Maelle in Virtuose Stance with Melarum at level 33, Verso unlocked with Sireso, item:sciel for buff seeding, item:painted-power slotted, and an At Death's Door / item:solo-fighter setup, all of which are mid to late game gates.
What Sireso S Does
Sireso is a sword-pistol shared between Gustave and Verso. The level 4 passive reads: bonus damage from Perfection applies to all allies at half value, and bonus damage no longer applies to Verso. The weapon trades Verso's own Perfection scaling for a party-wide echo at half strength.
Verso's Perfection ranks at D, C, B, A, S; S rank doubles his outgoing damage in the community-tested estimate. With Sireso equipped on Verso, S rank stops boosting Verso and instead grants every other party member a flat plus 100 percent damage bonus. On a Maelle stacking Virtuose Stance, item:fortunes-fury, Powerful, Solo Fighter, Painted Power, and a full picto tower, that extra 100 percent is the largest single multiplier in the chain.
The catch lives in the same passive line. If Verso dies, the Sireso bonus disappears, even if item:survivor or Shortcut revives him next turn. He has to be standing during Maelle's Gommage cast for the multiplier to count.
For a full breakdown of how Perfection ranks build and decay, see our Verso Perfection Rush Build Guide.
Why Melarum Beats Medalum Here
Medalum is the Stendhal weapon. Its level 20 passive opens every fight in Virtuose Stance. For the SIRESO + MELARUM combo, Maelle reaches Virtuose Stance on turn 2 via item:last-chance instead, which frees the weapon slot for raw output.
Melarum scales S in Vitality and A in Luck, with a Power value of 3,584 (highest of any Maelle rapier in our entity table). The level 20 passive switches Maelle to Virtuose Stance when health falls below 50 percent, which dovetails with the 1 HP At Death's Door setup the build is already running.
Community testing in the Reddit one-shot Gommage records thread (October 2025) ranked five Maelle weapons under an identical Sireso S buff stack against Painted Love and Cromatic Moissonneuse: Tissenum lowest, then Barrier Breaker, Medalum, Yeverum, with Melarum highest. Melarum took the top slot in every test pass.
Three-Turn Setup
The order of operations matters. Sciel buffs first, Verso fills the gradient bar and reaches Sireso S, Maelle is held at 1 HP with full shields, and Gommage fires last.
Sciel turn 1 and 2. Open with free aim shots until 5 AP, then cast Fortune's Fury on Maelle for the double-damage window. On turn 2, free aim shots to finish AP, then a Healing Tint to die. Sciel comes back instantly via item:second-chance with 1 HP and passes turn to Verso. Sciel must be alive for Maelle's final hit so Teamwork applies its full 21 percent damage bonus. Slowing Death and Breaking Death apply Slow and a chunk of break-bar damage to the target on her death event.
Verso turn 1 and 2. First aim shot breaks the boss via item:sniper picto and applies Greater Defenseless. Remaining AP goes into free aim shots to build the gradient bar. End turn 1 with a Shielding Tint on Maelle, giving her the last 2 shields up to 9 total. Turn 2 is more free aim shots until Verso reaches S rank Perfection and the gradient bar fills to 3. If Verso would die from accumulated chip damage, Survivor and Shortcut keep him at 1 HP without dropping his Sireso S rank.
Maelle turn 1 and 2. Turn 1 opens with a Healing Tint that does not heal (blocked by Confident Fighter) and instead converts into Shields via In Medias Res, Solidifying, and Shielding Tint, for 7 total. Auto Death already triggered Survivor at battle start, so Maelle sits at 1 HP with At Death's Door active. Turn 2 casts Last Chance to enter Virtuose Stance.
Maelle Gommage hit. Maelle's third turn arrives before the boss acts thanks to Speed scaling. The buff stack reads: Virtuose Stance, At Death's Door, Fortune's Fury double damage, Sireso S plus 100 percent, full Teamwork from all three alive, Painted Power for the cap removal, Warming Up, and the picto and lumina damage tower. Hit Perfect on the Gommage QTE and the damage number lands in the 1.7 to 2.6 trillion range depending on the target's break-weakness modifier.
Buff Stack Breakdown
Every multiplier landed on the same hit compounds. The load-bearing luminas are:
On Maelle: Painted Power (cap removal, mandatory), At Death's Door, Solo Fighter, item:augmented-first-strike, item:empowering-attack, item:critical-burn into item:burning-shots, item:rewarding-mark, item:dead-energy-ii, Sweet Kill, Teamwork, Warming Up, item:cheater, Glass Canon, item:first-strike. The hidden 10 percent damage luminas (Sweet Kill, Teamwork, Dead Energy II, First Strike) were patched in 1.5.0; the build assumes the post-patch values.
On Sciel: Fortune's Fury skill cast on Maelle, Teamwork, Charging Mark for the break setup, Slowing Break and Slowing Death for the Slow status, Breaking Death for the break-bar contribution, Painted Power.
On Verso: Sireso weapon, Sniper picto for the opening break, Greater Defenseless, Greater Slow, Marking Shots, Shielding Tint for Maelle's shield top-up, Survivor and Shortcut for the 1 HP loop, Painted Power.
The single largest contributor outside Painted Power is the Sireso S boost. Every damage modifier is a static buff stack landed before Maelle's offensive turn; the Gommage QTE Perfect is the only timing requirement on the killing blow.
For a deep dive on how Painted Power lifts the 9999 hit cap that makes any of this possible, see the Pictos and Luminas System Guide.
Failure Modes
Verso drops out of S rank. Sireso's bonus evaporates. The damage number drops by roughly half. Cause: Verso takes damage on an enemy turn (Survivor prevents the death but not the rank loss), or an enemy AOE clips him during the Sciel death sequence.
Sciel dies before Maelle's Gommage. Teamwork drops by roughly 10 percent. Slowing Death and Breaking Death already fired; the issue is Teamwork's all-party-alive condition fails if Second Chance does not revive her. Do not drop Second Chance on Sciel.
Healing Tint heals instead of converting to shields. Confident Fighter must be slotted on Maelle. Without it, the opening Healing Tint heals her back above the At Death's Door threshold and the 1 HP damage bonus disappears.
Gommage QTE misses Perfect. A Good hit lands in the high billions instead of the trillions. The published Reddit numbers are all Perfect-hit runs.
SIRESO S vs Solo Fighter Variant
The same Reddit author runs a Solo Fighter variant: both Sciel and Verso fully die before Maelle's last turn, Maelle is alone, and Solo Fighter grants its 50 percent damage bonus instead of Sireso's 100 percent. The trade is cleaner. Verso does not need to hold S rank, and the auto-Powerful first-seat bug is sidestepped. The cost is the missing Teamwork stacks (21 percent gone with two dead allies) and the missing 100 percent Sireso boost.
Net damage came out lower than SIRESO S in every weapon pairing except a handful where Verso turn order produced bugged Sireso behavior. Run Solo Fighter if you cannot reliably hold Verso at S rank with Sireso equipped. Run SIRESO S if you can.
When to Use This vs Stendhal
Both builds want the same boss-state setup: broken, marked, defenseless, slowed, with Maelle in Virtuose Stance carrying a full picto and lumina stack. The Stendhal one-shot is a single Maelle skill cast in turn 1 if Medalum is equipped, gated by the Roulette 50/50 dice roll. The SIRESO + MELARUM combo is a three-turn coordinated setup with Sciel and Verso playing dedicated support roles, gated by Verso holding Sireso S rank through enemy turns.
Stendhal is the speed-clear pick when Roulette luck is on your side. The SIRESO + MELARUM combo is the ceiling pick on weak-on-break bosses (Cromatic Moissonneuse, several Endless Tower opponents) when you want the largest single Gommage number the game can produce. The 2.6 trillion ceiling will not survive a future weak-on-break rebalance, but for the current 1.5.5 live patch, this is the number.