What are the odds of double crit plus ATK% on one echo?
3.50%, about 1 in 29 echoes (5★, +0 to +25).
The math
Possible sets of 5 substat types: 1,287.
Sets with all three: C(10, 2) = 45.
45 / 1,287 = 3.50%.
Similar goals
| Goal | Chance per echo | Echoes per hit |
|---|---|---|
| Crit. Rate and Crit. DMG | 12.82% | 1 in 7.80 |
| Crit. Rate, Crit. DMG, and at least 1 of ATK% or Energy Regen | 6.29% | 1 in 16 |
| Crit. Rate, Crit. DMG, and ATK% | 3.50% | 1 in 29 |
| Crit. Rate, Crit. DMG, ATK%, and Energy Regen | 0.699% | 1 in 143 |
"Crit. Rate, Crit. DMG, and at least 1 of ATK% or Energy Regen" is 1.8× as likely as both crits and ATK%.
Echoes needed
| Echoes | |
|---|---|
| Average | 28.6 |
| Half of players | 20 or fewer |
| 9 in 10 players | 65 or fewer |
Each echo is a new roll. Misses do not raise the odds of the next echo.
Cost
Averages for the whole goal, after discard refunds (75% of EXP, 30% of Tuners).
| Route | Echoes | Tuners | Premium Tubes | Transducers |
|---|---|---|---|---|
| Max every echo | 28.6 | 1,016 | 226 | — |
| Tune & scrap (strict) | 286 | 2,570 | 143 | — |
| One echo + Data Modify | 1 | 50 | 28.6 | 5.5 |
Max every echo: tune every echo to +25, keep the first hit.
Tune & scrap (strict): scrap at the first tune that misses a goal stat.
Data Modify: reroll one +25 echo until it hits.
In Waveplates and money
| Route | Tacet runs | Days | Money value |
|---|---|---|---|
| Max every echo | 50.8 | 12.7 | $38 |
| Tune & scrap (strict) | 128 | 32.1 | $95 |
| One echo + Data Modify | 5.9 | 1.5 | $45–$85 |
1 Tacet Field run (60 Waveplates): about 24,155 Echo EXP (4.8 Premium Tubes) and 20 Premium Tuners. 240 Waveplates per day.
One run drops tubes and Tuners together, so the scarcer one sets the runs. Echo drops are not counted.
Money: a 60-Waveplate refill costs 60 Astrite (the first 2 each day). 1 pull = 160 Astrite. At the $99.99 Lunite pack, 1 Astrite ≈ $0.0124, 60 Waveplates ≈ $0.74, and 1 pull ≈ $1.98.
Other ways to buy Waveplates: Sage's Solvent Aid, $4.99 for 7 Crystal Solvent, is $0.71 per 60 when the shop offers it. The Lunite Subscription, $4.99 for 3,000 Astrite, is $0.10 per 60, for up to 3,000 Astrite a month.
Shops: a Premium Sealed Tube also sells for 250 Monnaie (Averardo Bank) or 50 Data Sets (Simulation Training Store, 25 max).
Drop data: community drop sheet, 1,697 Tacet Field runs at SOL3 Phase 8, versions 2.0–2.5.