# Upgrade

By burning 3-5 same low-quality Tickets or Buses NFTs, ART, and AMT, users can get a higher quality NFT.\
\
The attributes' value and the socket type will be generated randomly. The upgraded Ticket or Bus has a 15%-25% higher attribute parameter than the normal one.

| Quality | NFT Attributes | Enhanced Attributes |
| :-----: | :------------: | :-----------------: |
|    N    |      1\~8      |          NA         |
|    R    |      8\~16     |       9.2\~20       |
|    SR   |     16\~32     |       18.4\~40      |
|   SSR   |     32\~60     |       36.8\~75      |
|    UR   |     60\~100    |       69\~125       |


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