Star Force Calculator

Equipment

Item level Trials

Star range

Current ★ Target ★

Modifiers

MVP discount Event

Enhancement Mode (new · experimental · 15★–21★) Mode 1 — 1× cost · baseline (uses Safeguard)

Star catching (+5%) Safeguard (15→16, 16→17, 17→18)

Modes 2 & 3 don't use Safeguard, so boom chance goes up in some instances.

Enhancement Mode

Cost multiplier by mode × that star's base cost

Mode	15–17★	18–21★
1 baseline	1×	1×
2	1.5×	2×
3	2.5×	3.5×
4	3×	6.5×

Multiplier applies on top of each star's base meso cost (which already varies per star). Modes apply to 15★–21★ only; below 15★ and at 22★+ cost is unchanged.

Destroy chance by star % per attempt

Star	Mode 1	Mode 2	Mode 3	Mode 4
15 → 16	2.10%	1.40%	0.70%	0%
16 → 17	2.10%	1.40%	0.70%	0%
17 → 18	6.80%	4.25%	1.70%	0%
18 → 19	6.80%	4.40%	1.80%	0%
19 → 20	8.50%	6.16%	3.60%	0%
20 → 21	10.50%	7.50%	4.00%	0%
21 → 22	12.75%	8.80%	4.50%	0%

Destroy (boom) chance per attempt. Mode 1 equals the base rate; higher modes reduce it, and Mode 4 never destroys. For 18★–21★ the success rate also drops at higher modes (15% → 12% → 10% → 8%; 20★ runs 30% → 25% → 20% → 15%).