AION 2 Enhancement Calculator
Pick a grade, set your current and target level, and get the expected attempts per step — the pity ramp (+5% success per failure on Unique gear) is built into the math. Add the per-attempt cost from your own item level to turn attempts into a Kina budget.
| Step | Base chance | Pity per fail | Expected attempts | 90% within |
|---|---|---|---|---|
| +10 → +11 | 65% | +5% | 1.49 | 3 |
| +11 → +12 | 50% | +5% | 1.86 | 3 |
| +12 → +13 | 35% | +5% | 2.44 | 5 |
| +13 → +14 | 25% | +5% | 3.03 | 6 |
| +14 → +15 | 20% | +5% | 3.42 | 6 |
12.24expected attempts for the whole climb
23attempts for a conservative (90% per step) budget
Model: safe steps always succeed; Unique +11→+15 roll 65/50/35/25/20% with a +5% pity increment per failure; Amplify steps and pity follow item level bands. Expected values are exact solutions of this ramp — the same numbers client-data tools publish. Patch notes move these numbers; the tables on the gear pages carry the current verification dates.
How the math works
Each step below +10 rolls its base chance (65/50/35/25/20% on Unique gear) and every failure adds +5% to the next attempt, so the expected attempts per step are the exact solution of that pity ramp — 1.5, 1.9, 2.4, 3.0 and 3.4 for the +11 to +15 ladder, about 12 attempts for the full climb. Amplify steps past +15 follow their own descending odds and pity per item level band. The same tables, with verification dates, live on the gear enhancement page. Patch notes move these numbers first — this calculator moves with them.