Calculator
Star Up Calculator
0 to 5 stars costs 890 fragments — and it is not five even steps per star. Enter where a hero stands and what you're holding, in either fragment type.
0 to 5 stars costs 890 fragments — and it is not five even steps per star. Enter where a hero stands and what you're holding, in either fragment type.
Star Up is priced in 23 separate nodes across five stars, not a flat five-per-star ladder — and the shape is different tier to tier. Some tiers ramp, some are flat, some end in a capstone triple the unit cost. The question worth asking is the same one that matters for skill books: how far do the fragments I already have actually get me.
| Node | Fragments | Cumulative | Left in hand |
|---|
Each row is one Star Up click in-game. The highlighted row is the last one your fragments cover — everything below it is what you still have to farm. Hero-specific and Universal fragments spend at 1:1, so this tool just adds them together.
What each node costs and what it has cost by the time you arrive. Verified for gold and purple heroes; the two are priced identically. This is not a uniform five-steps-per-star climb — 2★ and 3★ only take four clicks each.
| Tier | Nodes | Shape | Tier total | Cumulative |
|---|
| Node | Fragments | Cumulative |
|---|
4★ and 5★ alone cost 800 of the 890 total — 90%. Reaching 3★ from scratch costs just 90 fragments; the next single star (4★) costs more than three times that (300), and 5★ matches it again (500). Any plan that treats "get to 3★" and "get to 5★" as the same kind of decision is hiding a cliff.
1★ is the odd tier out: it doesn't ramp evenly like the others — the five nodes cost 1, 1, 2, 3, 3, not a flat unit. Every other tier is either flat (2★, 3★) or flat-with-a-capstone (4★, 5★).
Every hero has its own hero-locked fragment (won from that hero's own sources). A second currency, Universal Hero Fragments, works on any hero — and it costs exactly the same as the hero-specific one. There is no premium and no discount for using either.
In practice this means a Star Up click can draw from both stashes at once: if a hero has fewer hero-specific fragments left than a node costs, the game tops up the remainder from Universal automatically. A confirmed example — a node costing 15 total, paid as 5 hero-specific (everything that hero had left) plus 10 Universal.
This page tells you what a star costs. It cannot tell you whether that star belongs on this hero — and gold and purple are not close to equal once you look past the fragment count.
| Tier | Fragments 1★→5★ | 5★ star bonus | Verdict |
|---|---|---|---|
| S (gold) | 890 | +1,300% | Premium fragments belong here first |
| A (purple) | 890 | ~half of S-tier | Same bill, roughly half the payoff |
The fragment cost curve is identical between gold and purple heroes — the difference is entirely in what 5★ actually buys. That is the arithmetic behind spreading premium fragments across your multiplicative core rather than your whole roster: the 4★→5★ jump is where the biggest star bonus and the biggest fragment bill sit on the same step, for every hero, gold or purple.
1★–3★ are a full step-by-step screenshot audit of one hero's Star Up screen (16 September 2026), cross-checked node by node against the game's own "held / next cost" readout with zero gaps. 4★ and 5★ are confirmed by direct in-game account, independently corroborated by screenshots on three further heroes. The Universal Fragment exchange rate (1:1) is confirmed the same way. Full evidence and reasoning: the knowledge base entry this page is generated from.
One thing still open: two heroes near or at 5★ max showed a fragment readout not yet fully understood. It doesn't change the totals on this page, but it isn't folded in either — treat the ladder above as settled and that detail as still being worked out.