A binding defense card is a card that will be bound when it is unbound and brought into battle. If it is 30 days, its service life will be shortened and it cannot be traded/sold. If it is permanent, the service life of this card will remain unchanged, but it cannot be traded or sent by email. As long as there is a lock in the lower left corner of this card's backpack, then this card is a locked and bound defense card, which cannot be moved in a large area or unbound.

The only way is:

Use a downgrade agent to change a permanent card into a 30-day card,

After the change, it was untied,

But the degradation agent needs to be purchased with some rolls,

But I suggest you go to the trading floor.

It will be cheaper there.

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