It is important to clarify what is meant by the term "transaction" in this context. Assuming that the transaction refers to the purchase or sale of goods or services, it is necessary to consider the legality of the transaction in accordance with the laws and regulations that govern such activities.

In the case of LUNC (Terra Classic), if the transaction involves the purchase or sale of products or services that are legal and compliant with the relevant laws and regulations, then the transaction would be considered legal. This would include ensuring that the products or services being traded are not illegal or prohibited, such as drugs, weapons, stolen goods, or counterfeit items.

It is also important to consider the legality of any financial transactions involved in the purchase or sale of goods or services. This includes ensuring that payments are made through legitimate and legal channels, and that any taxes or duties are properly accounted for and paid.

Additionally, it is important to consider any specific regulations or restrictions that may apply to the transaction, such as export controls, licensing requirements, or restrictions on certain types of transactions or products.

In conclusion, the legality of the transaction involving LUNC (Terra Classic) would depend on a variety of factors, including the nature of the goods or services being traded, the compliance with relevant laws and regulations, and the legitimacy of the financial transactions involved. It is important to ensure that all aspects of the transaction are conducted in accordance with the law to avoid any potential legal issues or consequences.