Everything you need to raise Harold to E2 · Skill 7 · Mastery 3 in Arknights. The tables below break it down by stage.
| Material | Tier | Qty |
|---|---|---|
| Crystalline Electronic Unit | T5 | 4 |
| Medic Dualchip | T5 | 3 |
| Nucleic Crystal Sinter | T5 | 4 |
| Cutting Fluid Solution | T4 | 3 |
| Cyclicene Prefab | T4 | 5 |
| Incandescent Alloy Block | T4 | 3 |
| Keton Colloid | T4 | 3 |
| Orirock Concentration | T4 | 3 |
| Oriron Block | T4 | 2 |
| Refined Solvent | T4 | 6 |
| RMA70-24 | T4 | 3 |
| Skill Summary - 3 | T4 | 48 |
| Transmuted Salt Agglomerate | T4 | 8 |
| Aggregate Cyclicene | T3 | 3 |
| Aketon | T3 | 3 |
| Crystalline Component | T3 | 2 |
| Incandescent Alloy | T3 | 3 |
| Integrated Device | T3 | 3 |
| Medic Chip | T3 | 4 |
| Orirock Cluster | T3 | 14 |
| Skill Summary - 2 | T3 | 18 |
| Device | T2 | 5 |
| Polyketon | T2 | 3 |
| Skill Summary - 1 | T2 | 8 |
| Sugar | T2 | 5 |
| Oriron Shard | T1 | 5 |
| 26 types total | 171 | |
| Material | Tier | Qty |
|---|---|---|
| Medic Dualchip | T5 | 3 |
| Transmuted Salt Agglomerate | T4 | 8 |
| Medic Chip | T3 | 4 |
| Orirock Cluster | T3 | 14 |
| Device | T2 | 2 |
| Sugar | T2 | 5 |
| 6 types total | 36 | |
| Material | Tier | Qty |
|---|---|---|
| Skill Summary - 3 | T4 | 6 |
| Aggregate Cyclicene | T3 | 3 |
| Aketon | T3 | 3 |
| Incandescent Alloy | T3 | 3 |
| Skill Summary - 2 | T3 | 18 |
| Device | T2 | 3 |
| Polyketon | T2 | 3 |
| Skill Summary - 1 | T2 | 8 |
| Oriron Shard | T1 | 5 |
| 9 types total | 52 | |
| Material | Tier | Qty |
|---|---|---|
| Crystalline Electronic Unit | T5 | 4 |
| Cutting Fluid Solution | T4 | 3 |
| Orirock Concentration | T4 | 3 |
| Refined Solvent | T4 | 6 |
| RMA70-24 | T4 | 3 |
| Skill Summary - 3 | T4 | 21 |
| Integrated Device | T3 | 3 |
| 7 types total | 43 | |
| Material | Tier | Qty |
|---|---|---|
| Nucleic Crystal Sinter | T5 | 4 |
| Cyclicene Prefab | T4 | 5 |
| Incandescent Alloy Block | T4 | 3 |
| Keton Colloid | T4 | 3 |
| Oriron Block | T4 | 2 |
| Skill Summary - 3 | T4 | 21 |
| Crystalline Component | T3 | 2 |
| 7 types total | 40 | |
To combine several operators, deduct your inventory and get a crafting-aware farm plan, use Arknights Calculator.