Silver Palace — Mementos Guide
Comprehensive field guide to all 26 Mementos in Hilbert's Hotel. Avoid the 3 pure traps and 4 look-alike pairs, master double-edged trade-offs like the Silverium Gauntlets, and maximize your Voucher economy.
- No Upgrades Required: All 26 Mementos operate at 100% full strength right away upon collection from Random Event dialogue doors and persist until the run concludes.
- Rarity & Category Distribution: Divided into 10 Economy Mementos and 16 Combat Mementos across 3 Common, 9 Rare, 10 Epic, and 4 Legendary rarities.
- Beware the 3 Pure Traps: Maw of Greed (-25% battle Vouchers), VIP Service List (+30% shop prices), and Depreciating Bond (-5% Vouchers/event) are pure penalties with zero upside.
- Watch Look-Alike Matched Pairs: Four pairs share near-identical art where one buffs you and the other punishes you (e.g. Gold Pot vs. Maw of Greed, Sales Voucher vs. VIP Service List).
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What is a Memento?
Mementos are passive artifacts discovered inside Hilbert's Hotel event rooms. There are 26 Mementos in total, spanning four rarity brackets: 3 Common, 9 Rare, 10 Epic, and 4 Legendary. They're divided into 10 Economy Mementos (which manipulate Voucher yields and shop discounts) and 16 Combat Mementos (which alter stats, damage multipliers, and cooldown cycles).
Traps, Trade-Offs & Look-Alike Matched Pairs
Not every shiny artifact is a boon. The Hotel's surreal nature introduces high-risk traps and mirror pairs designed to punish careless selection:
- 3 Pure Traps (All Common): Every single Common Memento in the game (Maw of Greed, VIP Service List, and Depreciating Bond) is a pure debuff without any positive modifier. Never pick them unless an event forces you to.
- 7 Double-Edged Trade-Offs: Relics like Hidden Spike (+100% Final DMG dealt, but +100% DMG taken) provide massive damage in exchange for fragile survivability.
- 4 Look-Alike Matched Pairs: Four pairs feature identical silhouette artwork and misleading descriptions:
- Gold Pot (+50% Vouchers) vs. Maw of Greed (-25% Vouchers)
- Sales Voucher (-30% shop cost) vs. VIP Service List (+30% shop cost)
- Appreciating Bond (+10% Vouchers/event) vs. Depreciating Bond (-5% Vouchers/event)
- Silverium Gauntlet: Left (+300% CRIT DMG / 50% CRIT Cap) vs. Right (+100% CRIT Rate / 200% CRIT DMG Cap)
All 10 Economy Set Mementos
The Economy Set dictates how many Hotel Catalysts and card refreshes you can afford at the Supplies Shop:
| Memento Name | Rarity Bracket | Classification | Exact Tactical Effect | Draft Timing |
|---|---|---|---|---|
| Maw of Greed | Common | Pure Trap | Reduces Hilbert's Hotel Vouchers acquired from battles by 25%. | AVOID ALWAYS |
| Gold Pot | Rare | Economy Buff | Increases Hilbert's Hotel Vouchers acquired from battles by +50%. | Floors 1–6 |
| Sales Voucher | Rare | Shop Discount | Reduces the Voucher cost of all shop items by 30%. | Floors 1–8 |
| VIP Service List | Common | Pure Trap | Increases the Voucher cost of all shop items by +30%. | AVOID ALWAYS |
| Depreciating Bond | Common | Pure Trap | Reduces current Hotel Vouchers by 5% with each event cleared. | AVOID ALWAYS |
| Appreciating Bond | Epic | Compound Yield | Increases current Hotel Vouchers by +10% with each event cleared. | Floors 1–5 (Rush) |
| Luxury Sweets Jar | Rare | Relic Synergy | Grants Vouchers per new Memento (50 Common, 75 Rare, 100 Legendary). | Early / Mid Run |
| Doubled Chips | Epic | Lump Sum | Instantly increases current Hotel Vouchers by +50% of your total balance. | Floors 8–11 |
| Hotel Souvenir Coin | Rare | Lump Sum | Grants 100 Vouchers, plus an extra 100 for each Memento in your possession. | Floors 9–11 |
| Secret Shaker | Epic | Bonus Card | Instantly grants 1 to 2 random Privilege Cards for the active squad. | Anytime |
All 16 Combat Set Mementos
The Combat Set alters operative battle statistics, cooldowns, and tactical assault rotations:
| Memento Name | Rarity Bracket | Classification | Detailed Combat Modifier |
|---|---|---|---|
| Shears of Golden Boughs | Rare | Trade-Off | On battle entry: +50% Final DMG dealt, but +50% DMG taken. |
| Hidden Spike | Epic | Trade-Off | On battle entry: +100% Final DMG dealt, but +100% DMG taken. |
| Lucky Rabbit Foot | Rare | Cycling Buff | Final DMG Bonus increases from 0% to 140% over 10s, then resets to 0%. |
| Secret Society Charm | Epic | Trade-Off | Final DMG Bonus drops from +200% down to -60% over 10s, then resets to +200%. |
| Toxic Whip | Rare | True Damage | Every instance of damage dealt also deals 0.5% of current HP as bonus damage. |
| Damaged Time | Rare | Trade-Off | Attacks against 100% HP enemies deal 60% Max HP, after which target recovers 5% HP/s. |
| Silverium Gauntlet: Right | Epic | Trade-Off | +100% CRIT Rate, but CRIT DMG is locked to a fixed 200% ceiling. |
| Silverium Gauntlet: Left | Epic | Trade-Off | +300% CRIT DMG, but CRIT Rate is locked to a fixed 50% ceiling. |
| Season's Bouquet | Legendary | HP Conversion | On battle entry: Converts 15% of operative Max HP into bonus ATK. |
| Scale of Strength | Epic | Stat Equalizer | On battle entry: Equalizes ATK and DEF to whichever stat is higher. |
| Aromatic Essence | Rare | Hit Burst | Every 5th attack deals +100% bonus DMG. |
| Rusty Pocket Watch | Epic | Trade-Off | -15% Final DMG baseline, but every 10th attack deals +350% DMG. |
| Lucky Card | Legendary | Proc Multiplier | +100% trigger probability for all chance-based attributes and effects. |
| Watcher's Dreamcatcher | Legendary | Draft Priority | +100% chance for active character's Character-Bound Catalysts to appear. |
| Guest Room Tool Kit | Epic | Energy Recovery | Restores 25% Reactor Energy whenever off-field teammates use Tactical Assault. |
| Professional Tool Kit | Legendary | Trade-Off | +100% Reactor Energy cost on Tactical Assaults, but increases their effects by +100%. |
Tactical Memento Drafting Directives
Apply these rules when choosing Mementos during random event dialogues:
- 1. Never pick Common relics: If an event dialogue presents a Common Memento, look for an alternative path, bribe the NPC, or walk away - all 3 Common relics are pure debuff traps.
- 2. Check your CRIT before picking Gauntlets: If your carry has 70% CRIT Rate and 280% CRIT DMG, Silverium Gauntlet: Right will cripple your damage output by capping your CRIT DMG at 200%.
- 3. Scale of Strength for Hybrid Tanks: Operatives like Gratia and Lorin with massive natural DEF gain thousands of flat ATK from Scale of Strength.
Frequently Asked Questions
Can I remove or sell a Memento mid-run? +
No. Mementos can't be sold or removed once accepted from an event room. Always double-check relic names before choosing to avoid pure trap items like Maw of Greed and VIP Service List.
How does Lucky Card affect chance-based Catalysts? +
Lucky Card increases all probability-based triggers by +100%, turning a 20% proc chance (e.g. Fuming Sulphur) into 40%, and a 40% proc chance into 80%.
Does Silverium Gauntlet: Right lower my CRIT DMG if it's already above 200%? +
Yes. It enforces a strict 200% CRIT DMG ceiling. If your operative build already exceeds 200% CRIT DMG, taking this relic will actually reduce your overall damage output.
Does Scale of Strength recalculate continuously during combat? +
Scale of Strength snapshots upon entering each battle chamber, raising the lower stat (ATK or DEF) to match whichever value is higher.
