# Boost NFT cards (bonus cards)

Each NFT card can be boosted up to 5 times to improve Earning attribute. Each boosting will cost **200 NEXT** to improve earnings by **2 units** and must be 48hr apart.

<figure><img src="/files/SKJVQ9N7z1HFxtgi2UKK" alt=""><figcaption></figcaption></figure>

| **To boost** | **Boosting Cost (NEXT)** | **Earning increase** | **Time from last update** |
| ------------ | ------------------------ | -------------------- | ------------------------- |
| 1            | 200                      | 2                    | 48hr                      |
| 2            | 200                      | 2                    | 48hr                      |
| 3            | 200                      | 2                    | 48hr                      |
| 4            | 200                      | 2                    | 48hr                      |
| 5            | 200                      | 2                    | 48hr                      |

Your original NFT card earning will affect the reward percentage increment after each boosting. The rule of thumb is that the higher earning, the lesser increments as you're already earning a lot with this [high earning](/whitepaper/how-to-play/what-are-nft-cards-bonus-cards.md#nft-card-types) NFT card.

<figure><img src="/files/mkZhvxX8Yz4QBO0rHfba" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/u13gjJeSGHIminUwTxGL" alt=""><figcaption></figcaption></figure>


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