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Equipment

The Equipment System in Valley of Heroes allows players to mint, upgrade, and manage powerful NFT equipment items that enhance heroes' capabilities.

🎯 Overview​

Equipment are NFT items that can be minted using BONES tokens and upgraded using HONOR tokens. Each equipment has a type, rarity level, and upgradeable level (up to level 30).

🗡️ Equipment Types​

There are 5 equipment types, each corresponding to a specific rarity:

  1. Berserker's Ring (Common) - Ring equipment
  2. Vampiric Blade (Rare) - Weapon equipment
  3. Shadowdancer's Charm (Epic) - Amulet equipment
  4. Warlord's Battleplate (Mythic) - Armor equipment
  5. Immortal Conqueror (Legendary) - Full set equipment (with type advantage)

⭐ Rarity Levels​

Equipment come in 5 rarity levels, matching the hero rarity system:

  • Common (N) - Gray
  • Rare (R) - Blue
  • Epic (E) - Purple
  • Mythic (M) - Pink
  • Legendary (L) - Gold

Rarity Distribution​

When minting equipment, the rarity is randomly determined with the following probabilities:

  • Common: 60%
  • Rare: 30%
  • Epic: 7%
  • Mythic: 2.5%
  • Legendary: 0.5%

💰 Minting Equipment​

Requirements​

  • BONES Token: Equipment is minted using BONES tokens
  • Max Supply: 3,000 equipment NFTs total
  • Random Rarity: Rarity is randomly determined at mint time

Minting Process​

  1. Acquire BONES tokens (earn from Titan Boss battles)
  2. Visit the Bones Market page
  3. Pay 2,000 BONES to mint equipment
  4. Receive a random equipment NFT with random rarity

⬆️ Upgrading Equipment​

Equipment can be upgraded from level 1 to level 30 using HONOR tokens.

Upgrade Costs​

Upgrade costs vary by rarity and increase with each level:

RarityBase CostGrowth Rate
Common10 HONOR8% per level
Rare15 HONOR9% per level
Epic20 HONOR10% per level
Mythic25 HONOR11% per level
Legendary30 HONOR20% per level

Upgrade Formula​

The cost to upgrade from level L to L+1 is calculated as:

Cost = BaseCost × (1 + GrowthRate)^(L-1)

Bulk Upgrade​

You can upgrade multiple levels at once using the upgradeEquipmentMultiple function, which:

  • Saves gas costs by combining multiple upgrades into a single transaction
  • Validates total cost to ensure accuracy
  • Updates level in a single operation

Example Costs​

Common Equipment (8% growth):

  • Level 1 → 2: 10.8 HONOR
  • Level 5 → 6: 13.6 HONOR
  • Level 10 → 15.0 HONOR
  • Level 20 → 21.6 HONOR
  • Level 29 → 30: 86.3 HONOR

Legendary Equipment (20% growth):

  • Level 1 → 2: 36.0 HONOR
  • Level 5 → 6: 74.6 HONOR
  • Level 10 → 11: 185.8 HONOR
  • Level 20 → 21: 1,154.6 HONOR
  • Level 29 → 30: 6,644.2 HONOR

📊 Equipment Stats​

Each equipment has:

  • Equipment Type: Determined by rarity (1:1 mapping)
  • Rarity: Common, Rare, Epic, Mythic, or Legendary
  • Level: Current level (1-30)
  • Type Advantage: Only Legendary (Immortal Conqueror) has type advantage

🎮 Strategic Considerations​

Investment Priority​

  1. Legendary Equipment: Highest priority - best stats but most expensive to upgrade
  2. Mythic Equipment: Good balance of rarity and upgrade costs
  3. Epic Equipment: Decent for mid-game progression
  4. Rare/Common: Use for early game or as backup equipment

Upgrade Strategy​

  • Early Levels: Focus on getting equipment to level 10-15 for good stat boosts
  • Mid Game: Invest in higher rarity equipment (Epic/Mythic)
  • End Game: Max out Legendary equipment for maximum power
  • Bulk Upgrades: Use bulk upgrade feature to save gas when upgrading multiple levels

Cost Management​

  • Higher rarity = higher upgrade costs
  • Legendary equipment costs significantly more to upgrade (20% growth vs 8-11% for others)
  • Plan your HONOR spending based on your equipment collection
  • Consider the long-term investment when choosing which equipment to upgrade

🔗 Related Systems​

⚠️ Important Notes​

  • Equipment rarity is permanently assigned when minted
  • Equipment level starts at 1 (not 0)
  • Maximum level is 30
  • Equipment can be traded on secondary markets (ERC721 standard)
  • All equipment upgrades use HONOR tokens (6 decimals)
  • Bulk upgrades are more gas-efficient than individual upgrades