Each rarity tier raises all stats a little (+1–3%) and adds one trait. Phantom and Super Legend also raise luck. All fairies have the same total aptitude.
Real rarity is decided by the star reading after birth: Glitter 1/4, Aurora 1/8, Golden 1/16, Starry Night 1/64, Phantom 1/256, Super Legend 1/10000. Fusion, evolution and battles can occasionally raise it too, but only up to Phantom.
Rarity odds
The birth draw happens only once, when you get the egg, and cannot be redrawn. You get one egg per chain. The battle and fusion/evolution columns are the chance of going up one step from the current tier, drawn each time. Phantom and Super Legend have no draw.
These numbers match the contract. The draws use public randomness (drand), so not even the operator can choose the result. Fees are fixed amounts, and paying more does not raise the odds.
The fairies shown here are samples, not born from real addresses.