Race rerolls in Wizard Alchemy feel much clearer when the odds are shown before you spend them. Pick a target race, enter how many rerolls you have, and the calculator estimates your chance of seeing that race at least once.
Target race
Night Knight
1% base chance
22.2%
Chance after 25 rerolls
100 rolls
77.8%
Keep call
Top target
Best for
Dark DPS builds and late-game damage
Limit
Very low roll chance
+20% Dark Elemental Damage, +10% Attack Power, +3% Base Movement Speed, +30% Jump Height, +30 Skill Speed
Applies Disaster status on hit
Rerolls to feel safer
50.0% chance
69
75.0% chance
138
90.0% chance
230
95.0% chance
299
Uses the listed base chance only. Luck boosts or pity would change the result.
How to use the race reroll calculator
- Pick the race you want from Target race or click a race card. The selected race controls the base chance, keep call, and reroll targets shown on the right.
- Enter how many rerolls you are willing to spend. You can type the number directly or use the quick buttons for common reroll amounts.
- Read the large percentage first. This is your chance of seeing the selected race at least once within the reroll count you entered.
- Check Miss chance before spending rare rerolls. For low-chance races, the miss chance often explains the risk better than the hit chance.
- Use Average as a rough long-run guide, not a promise. You can hit before that number or miss past it because every reroll is still random.
- Use Rerolls to feel safer when you are deciding whether to keep saving. Those cards show how many rerolls it takes to reach common confidence points like 50%, 75%, 90%, and 95%.
The calculator uses the listed race chance for each independent reroll with 1 - (1 - p)^n. It does not include pity, luck boosts, event modifiers, or hidden race-table changes unless those rules are added to the tool later.
Why low-chance races still take patience
A listed chance is checked one reroll at a time. A 1% target such as Night Knight averages one hit per 100 rolls over a long run, but 100 rerolls is still not a guaranteed hit. The calculator shows both the hit chance and the miss chance so the result feels closer to the real risk of rerolling.
When to stop rerolling
Rarity is only one part of the reroll decision. Death Eater is a strong farming hold because its damage and kill-heal bonuses help while clearing enemies. Stellar Ambassador is useful for hybrid spell builds because Attack Power and Skill Speed work across elements. Use the odds beside the selected race's bonuses and limits before deciding whether to keep rolling.
What the estimate leaves out
The calculation assumes each reroll uses the listed race chance and that every attempt is independent. It does not add pity, luck boosts, event modifiers, or any hidden in-game rule unless those rules are added to the tool later. If the game changes race chances, the estimates should be refreshed with the new values.
FAQ
Does the calculator guarantee a race after the expected roll count?
No. Expected rolls are an average over many attempts. A race can appear before that number, or you can miss past it, because each reroll is still random.
Why is 100 rolls on a 1% race not a 100% chance?
A 1% roll means each attempt has a 1% chance on its own. Across 100 independent rerolls, the chance of at least one hit is about 63%, not 100%, because every failed roll can still be followed by another failed roll.
Should I reroll every race that is not Legendary?
Not always. A race such as Death Eater or Stellar Ambassador can be worth holding if its bonus fits your farming route or spell build. Use the odds together with the race bonus and drawback before spending more rerolls.
Does the calculator include pity or luck boosts?
No. It uses the listed race chance for each independent reroll. If Wizard Alchemy adds a visible pity system, temporary boost, or changed race table, the calculator should be updated to include that rule.
