NFT-Hero.com is a decentralized GameFi application developed using the Solidity language. Users purchase NFT mystery card packs to randomly draw cards featuring characters from the classic Chinese novel "Water Margin," and place these character NFTs into designated slots to mine for the governance token of NFT-Hero, SH (full name: SuperHero). NFT cards will be tradable and more applications will open up over time, such as NFT card battles and DAO governance.
Feature Overview
Acquiring NFT Cards
• Purchasing Mystery NFT Card Packs: Users can choose from different priced mystery NFT card packs (with varying probabilities of obtaining higher-quality NFT cards) and after purchase, they can open their packs to randomly receive an NFT card featuring one of the 108 characters from "Water Margin."
• Staking SH-HUSD LP, HT, ETH, HBTC, HDOT, CIR for Mystery NFT Card Packs: Users can stake the following crypto assets to obtain mystery NFT card packs: HT, ETH, HBTC, HDOT, CIR, and SH-HUSD LP from CircleSwap (Note: HT, ETH, HBTC, HDOT, HUSD, CIR all refer to assets on the Heco chain).
Note: The generated SH tokens are locked within the NFT card. After 48 hours, users can retrieve the corresponding amount of SH by destroying the NFT card. More details in the NFT Card Introduction below.
• Staking SH for Mystery NFT Card Packs: Users can stake a certain amount of SH to obtain mystery NFT card packs. The quality of the NFT cards obtained from these packs generally increases with the amount of SH staked.
NFT Card Introduction (NFT)
NFT cards on NFT-Hero.com are based on the HRC-721 standard and feature characters from the 108 heroes of "Water Margin." Each cards number, quality, combat power, and included SH token quantity determine its value.
• The card number represents the character (type), e.g., 001 is Song Jiang, 002 is Wu Yong, 006 is Lin Chong, etc.;
• The quality of the card is divided into six tiers: Gold, Orange, Purple, Blue, Green, and White. Quality determines combat power, with higher-quality cards having greater combat power but also being rarer;
• The quantity of SH tokens included in the card is determined by the method of acquisition/pack. These tokens can be unstaked 48 hours after the cards creation by destroying the NFT card;
• Combat power determines mining efficiency, with higher combat power leading to more efficient mining (note: cards must be placed in the appropriate slot to participate in NFT collection mining);
• Each participating address has a card album with 108 slots, each corresponding to one of the 108 characters. NFT cards must be placed in the corresponding slot to participate in NFT collection mining;
• Extra NFT cards can be used to upgrade card slots, which will grant combat power bonuses. The SH contained in the NFTs used for upgrades is released linearly over 120 hours and can be claimed on the collection mining interface.
NFT Collection Mining
NFT-Hero.coms collection mining is the process through which users earn SH tokens based on the total combat power of their NFT cards placed in their albums compared to the total combat power across the entire platform.
• NFT Card Combat Power: Each NFT card has a quality, and the corresponding combat power values are as follows:

• Users Single Slot Combat Power: The base combat power of a slot is determined by the quality of the NFT placed in it. Users can upgrade slots using extra NFTs. The SH contained in these NFTs is released linearly over 120 hours. Slots range from level 0 to 10, with the required experience for each level as shown below:

• Experience Required for Slot Level Up and NFT Card Quality: NFT card quality is divided into White, Green, Blue, Purple, Orange, and Gold, with corresponding experience values as shown below:

• Card Combination Bonus: When multiple specific cards are placed in the album simultaneously, they form a combination, granting a combat power bonus to the cards in that combination. For example, when "Loyal and True" Song Jiang and "Black Whirlwind" Li Kui are both placed in the album, they form the "Loyal and True" combination, increasing the combat power of both cards by 12%. All card combinations can be viewed in the number of activated combinations on the collection mining interface.
• Bonus for Collecting Cards: When the album contains 12, 24, 36, 48, 60, 72, 84, 96, or 108 cards, the total combat power of the album is increased by 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, and 100%, respectively, as shown in the table below:

• Total Album Combat Power: The sum of the combat powers (including combination bonuses and slot upgrades) of all NFT cards placed in the album, multiplied by (1 + the bonus percentage for collecting cards), equals the total album combat power. This is the value used to calculate the efficiency of collection mining.