Everything you need to raise Underflow to E2 · Skill 7 · Mastery 3 in Arknights. The tables below break it down by stage.
| Material | Tier | Qty |
|---|---|---|
| Defender Dualchip | T5 | 3 |
| Nucleic Crystal Sinter | T5 | 4 |
| Polymerization Preparation | T5 | 4 |
| Cyclicene Prefab | T4 | 1 |
| Grindstone Pentahydrate | T4 | 3 |
| Incandescent Alloy Block | T4 | 12 |
| Keton Colloid | T4 | 7 |
| Manganese Trihydrate | T4 | 5 |
| Optimized Device | T4 | 3 |
| RMA70-24 | T4 | 3 |
| Skill Summary - 3 | T4 | 48 |
| Compound Cutting Fluid | T3 | 4 |
| Defender Chip | T3 | 4 |
| Fuscous Fiber | T3 | 9 |
| Incandescent Alloy | T3 | 2 |
| Polyester Pack | T3 | 3 |
| RMA70-12 | T3 | 3 |
| Semi-Synthetic Solvent | T3 | 2 |
| Skill Summary - 2 | T3 | 18 |
| Device | T2 | 2 |
| Orirock Cube | T2 | 8 |
| Polyester | T2 | 5 |
| Polyketon | T2 | 2 |
| Skill Summary - 1 | T2 | 8 |
| Diketon | T1 | 5 |
| 25 types total | 168 | |
| Material | Tier | Qty |
|---|---|---|
| Defender Dualchip | T5 | 3 |
| Incandescent Alloy Block | T4 | 8 |
| Defender Chip | T3 | 4 |
| Fuscous Fiber | T3 | 9 |
| Polyester | T2 | 5 |
| Polyketon | T2 | 2 |
| 6 types total | 31 | |
| Material | Tier | Qty |
|---|---|---|
| Skill Summary - 3 | T4 | 6 |
| Compound Cutting Fluid | T3 | 4 |
| Incandescent Alloy | T3 | 2 |
| RMA70-12 | T3 | 3 |
| Skill Summary - 2 | T3 | 18 |
| Device | T2 | 2 |
| Orirock Cube | T2 | 8 |
| Skill Summary - 1 | T2 | 8 |
| Diketon | T1 | 5 |
| 9 types total | 56 | |
| Material | Tier | Qty |
|---|---|---|
| Polymerization Preparation | T5 | 4 |
| Incandescent Alloy Block | T4 | 4 |
| Keton Colloid | T4 | 4 |
| Optimized Device | T4 | 3 |
| RMA70-24 | T4 | 3 |
| Skill Summary - 3 | T4 | 21 |
| Polyester Pack | T3 | 3 |
| 7 types total | 42 | |
| Material | Tier | Qty |
|---|---|---|
| Nucleic Crystal Sinter | T5 | 4 |
| Cyclicene Prefab | T4 | 1 |
| Grindstone Pentahydrate | T4 | 3 |
| Keton Colloid | T4 | 3 |
| Manganese Trihydrate | T4 | 5 |
| Skill Summary - 3 | T4 | 21 |
| Semi-Synthetic Solvent | T3 | 2 |
| 7 types total | 39 | |
To combine several operators, deduct your inventory and get a crafting-aware farm plan, use Arknights Calculator.