Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
supercell may manage , regulate , control , modify or eliminate virtual items and/or merchandise at any time , with or without notice . 

```
. OPTIONS: ["Jurisdiction", "Choice of law", "Unilateral termination", "Limitation of liability", "Contract by using", "Content removal", "None", "Unilateral change", "Arbitration"].