Everything you need to raise Lee to E2 · Skill 7 · Mastery 3 in Arknights. The tables below break it down by stage.
| Material | Tier | Qty |
|---|---|---|
| Bipolar Nanoflake | T5 | 6 |
| Crystalline Electronic Unit | T5 | 6 |
| D32 Steel | T5 | 6 |
| Polymerization Preparation | T5 | 4 |
| Specialist Dualchip | T5 | 4 |
| Crystalline Circuit | T4 | 4 |
| Cutting Fluid Solution | T4 | 5 |
| Grindstone Pentahydrate | T4 | 4 |
| Manganese Trihydrate | T4 | 7 |
| Orirock Concentration | T4 | 4 |
| Polymerized Gel | T4 | 12 |
| Refined Solvent | T4 | 8 |
| RMA70-24 | T4 | 9 |
| Skill Summary - 3 | T4 | 113 |
| White Horse Kohl | T4 | 18 |
| Compound Cutting Fluid | T3 | 4 |
| Grindstone | T3 | 10 |
| Incandescent Alloy | T3 | 7 |
| Orirock Cluster | T3 | 11 |
| Semi-Synthetic Solvent | T3 | 5 |
| Skill Summary - 2 | T3 | 24 |
| Specialist Chip | T3 | 5 |
| Device | T2 | 6 |
| Oriron | T2 | 8 |
| Polyester | T2 | 3 |
| Polyketon | T2 | 4 |
| Skill Summary - 1 | T2 | 10 |
| Oriron Shard | T1 | 5 |
| Sugar Substitute | T1 | 4 |
| 29 types total | 316 | |
| Material | Tier | Qty |
|---|---|---|
| Polymerization Preparation | T5 | 4 |
| Specialist Dualchip | T5 | 4 |
| White Horse Kohl | T4 | 9 |
| Specialist Chip | T3 | 5 |
| Device | T2 | 3 |
| Oriron | T2 | 8 |
| 6 types total | 33 | |
| Material | Tier | Qty |
|---|---|---|
| Skill Summary - 3 | T4 | 8 |
| Compound Cutting Fluid | T3 | 4 |
| Grindstone | T3 | 3 |
| Semi-Synthetic Solvent | T3 | 5 |
| Skill Summary - 2 | T3 | 24 |
| Device | T2 | 3 |
| Polyester | T2 | 3 |
| Polyketon | T2 | 4 |
| Skill Summary - 1 | T2 | 10 |
| Oriron Shard | T1 | 5 |
| Sugar Substitute | T1 | 4 |
| 11 types total | 73 | |
| Material | Tier | Qty |
|---|---|---|
| D32 Steel | T5 | 6 |
| Grindstone Pentahydrate | T4 | 4 |
| Refined Solvent | T4 | 4 |
| RMA70-24 | T4 | 5 |
| Skill Summary - 3 | T4 | 35 |
| White Horse Kohl | T4 | 9 |
| Incandescent Alloy | T3 | 7 |
| 7 types total | 70 | |
| Material | Tier | Qty |
|---|---|---|
| Crystalline Electronic Unit | T5 | 6 |
| Manganese Trihydrate | T4 | 7 |
| Orirock Concentration | T4 | 4 |
| Refined Solvent | T4 | 4 |
| RMA70-24 | T4 | 4 |
| Skill Summary - 3 | T4 | 35 |
| Grindstone | T3 | 7 |
| 7 types total | 67 | |
| Material | Tier | Qty |
|---|---|---|
| Bipolar Nanoflake | T5 | 6 |
| Crystalline Circuit | T4 | 4 |
| Cutting Fluid Solution | T4 | 5 |
| Polymerized Gel | T4 | 12 |
| Skill Summary - 3 | T4 | 35 |
| Orirock Cluster | T3 | 11 |
| 6 types total | 73 | |
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