Quick answer: At a bell, choose Upgrade Equipment, open the Accessories tab, select an accessory and hold the confirm button. A polish costs 1 Tainted Crystal Shard and 8,096 Remnant Dust on the accessories shown here.
In Phantom Blade Zero, polishing raises an accessory’s effect and adds +1 to its name. Before you start, carry at least one Tainted Crystal Shard and 8,096 Remnant Dust. That is the cost of a single polish on the Resonance Talisman and on the Quick Hand Pair.
How to polish an accessory
What polishing changes
| Accessory | Before | After |
|---|---|---|
 Resonance Talisman | Sha-Chi +15% | Sha-Chi +25% (Resonance Talisman+1) |
 Quick Hand Pair | Dual-Wielded weapon damage +10% | Dual-Wielded weapon damage +18% (Quick Hand Pair+1) |
On the Resonance Talisman, the description changes from “Increases Sha-Chi by 15%.” to “Increases Sha-Chi by 25%.” The Quick Hand Pair goes from 10% to 18% Dual-Wielded weapon damage.
Where to get Tainted Crystal Shards
The bell Store sells Tainted Crystal Shards for 7,440 Remnant Dust each. The Meigu Songhouse Dock bell, for example, stocks them. Buying a shard and polishing with it comes to 15,536 Remnant Dust per accessory.
