7k Rebirth
Complete Ruby Farming Guide
Master efficient ruby farming strategies
Complete Guide to Ruby Farming
This guide provides a detailed breakdown of how to farm 
rubies efficiently. The core principle is simple: when a hero is raised to level 30 for the first time, you receive 20 rubies. This guide will show you how to do this rapidly with "fodder" heroes to generate a steady income of rubies and lay the foundation for your account's growth.
We will compare strategies for players with the active "Daily Ruby Support" booster (which increases drop rates) and those without. In the data tables, the left side is always without the booster, and the right side is with the booster active.
1. 
Key Sources & Purchase Strategy
Key Sources
Before diving into purchasing strategies, let's explore all available sources of 
keys to maximize your farming potential.
Natural Regeneration
You receive keys automatically through natural regeneration. The base rate provides 480 keys daily, which increases to 720 keys per day when using the "Daily Power-Up Support" subscription due to accelerated regeneration.
Guild Activities
Guild check-ins offer 60 keys when more than 25 members participate. Both honor and guild exchange shops provide an additional 60 keys daily, with a weekly limit of 420 keys total.
Daily & Event Rewards
Complete daily missions to earn 60 keys, and don't miss out on event rewards from Expedition Events, Battle Passes, Raid Breakthrough Events, and Castle Rush milestones.
Ruby Exchange Shop
Alice's shop offers a free daily exchange of 60 keys, making this a must-do activity every day.
Important Tip: Avoid purchasing keys from the Arena Shop since Arena tokens are better invested in skill enhancement crystals. Focus on progressing through milestone areas (8, 11, 14) as these require fewer attempts to level up fodder, and higher-level maps generally provide better gold returns per successful run.
Purchase Strategy
Once you've gathered all available free keys, your farming cycle continues with strategic key purchases. There are two primary purchase options to consider.
A) Initial 
Key Pack (Best Value)
This should be your primary purchase every day.
- Cost: 50
Rubies for 60 Keys - Limit: Up to 20 times per day.
Profitability Analysis (Net Gain):
Without Booster: Farming becomes profitable starting from Area 2-7.
With Booster: Profit starts at Area 2-7 as well, but the returns are significantly higher.
Farming Strategies: Free-to-Play vs. Light Spender
The "Daily Ruby Support" subscription dramatically improves farming efficiency by providing 10% more hero experience from Adventure mode, reducing the number of runs required to maximize fodder levels.
Experience & Efficiency Comparison
Note: Values are rounded up. Each fodder requires 12,500 total EXP to reach max level.
Ruby Profit with Key Bundle Purchases
Strategic key bundle purchases from Alice's Shop can further enhance your farming efficiency:
- Package A: 20 bundles of 60 keys each at 50 rubies per bundle = 1,000 rubies for 1,200 keys
- Package B: 50 bundles of 60 keys each at 80 rubies per bundle = 4,000 rubies for 3,000 keys
Net Profit Analysis by Player Type
Key Insight: Ruby profits from farming remain consistently positive, even with key bundle purchases. While F2P players see diminishing returns with more bundles, both player types benefit from strategic purchases, especially light spenders who maintain higher profit margins.
B) Secondary Key Pack (Lower Value)
Use this option only after you have exhausted the initial key packs.
- Cost: 80 Rubies for 60 Keys
- Limit: Up to 50 times per day.
Profitability Analysis (Net Gain):
2. Best Maps to Farm
Choosing the right location is critical for efficiency.
- Milestone Maps: Your primary goal should be to progress through these key farming areas: Map 7, Map 8, Map 11, and Map 14.
- Ultimate Goal: Aim to reach Area 14 as soon as possible, as it offers the highest returns.
- Early Game Tip: Area 2-1 provides the same Ruby gain as Area 7-1. However, Area 7-1 is considered better as it has a small chance of dropping a Legendary Hero Summon card.
2.5 The Farming Process & Fodder Management
Core Farming Strategy
- Area 14 Priority: Make it your top priority to advance to Area 14 as quickly as possible to maximize experience gains and gold rewards.
- Stable Performance: Focus on maintaining consistent runs to prevent wasting keys and maximize your overall earnings.
- Fodder Requirements: Maintain a daily stock of 250-280 fodder minimum, and ensure you have a diverse selection since identical heroes cannot be placed in the same team.
Event Stages vs. Nightmare Mode
Event Stages: Provide excellent experience rewards but no fodder drops. These are particularly valuable for F2P players struggling with fodder quantities, and they offer solid ruby rewards.
Nightmare Stages: Consume double keys (12 per round) but count as two rounds toward mission progress. They provide reliable fodder drops (which can quickly fill your inventory), 4-star equipment, and increased gold earnings.
Strategic Recommendations:
- For Light Spenders: Nightmare mode is generally preferable after clearing essential rewards from event shops.
- For F2P Players: Alternate between event stages (for ruby rewards and other bonuses) and nightmare mode (for fodder variety and gold) to maintain a balanced resource strategy.
3. Recommended Farming Heroes & Team Setup
To farm efficiently, you need a hero who can clear stages quickly by themselves. Your team setup should be:
- 1x Strong Farming Hero: This hero will do all the work.
- X Fodder Heroes: Fill the remaining slots on your team with the low-level heroes you want to level up for rubies.
Here are the recommended heroes for the job, divided into tiers.
Main Damage Dealer: Pair your primary damage hero with four fodder heroes. The "Protective Formation" (back row damage boost, front row defense boost) often works best.
Recommended Farmers: Heroes with strong Area of Effect (AoE) abilities excel at farming. Top choices include Teo, Jave, Yeonhee, Nia, Velika, Rin, and Yeonghee. For early areas with fewer units per phase, even single-target skills can work effectively. However, later areas with more enemies greatly benefit from multi-target and full-area AoE skills.
Dual Farmers for Nightmare: For Nightmare farming, using two strong damage dealers (such as Teo and Yeonhee) alongside two fodder heroes can significantly accelerate the process and boost fodder output per run.
These heroes are the most effective and can clear stages the fastest.
These heroes are also very capable of farming efficiently.
3.5 Auto Farming Setup & Optimization
Battle Configuration Settings
- Battle End Conditions: Choose to end battles when defeated (recommended for unstable runs) or when keys are depleted/inventory is full.
- Auto Recharge: Enable automatic key purchases from available bundles.
Hero Management Settings
- Auto Replace Heroes: Activate "Auto-swap hero at max level" and "End Repeat Battle if hero cannot be swapped."
- Auto Replace Star Rank: Configure which star ranks of fodder to auto-replace. Initially exclude 1-star fodder, but adapt for Nightmare where 1-star fodder may not appear.
- Auto Replace Priority: Set to switch in highest star rank first.
Skill & Performance Settings
- Skill Priority: A common approach uses the bottom skill for Phase 1 and the top skill for Phase 2, as Phase 2 enemies are typically more challenging.
- Accelerated Mode: Always activate this for faster farming cycles.
- Auto-Sell Equipment: Set up automatic selling to prevent inventory overflow.
Proper auto farming configuration is essential for efficient ruby generation. These settings ensure continuous farming while optimizing resource management and preventing interruptions.
4. Understanding 
EXP and Fodder Leveling
This is the core of the ruby farming process. The goal is to get your fodder heroes to level 30 (which requires 12,500 total 
EXP). Basically, if you grow your hero to level 30, you can get 20 rubies. This process, when repeated quickly, provides a consistent supply of rubies and lays the foundation for further growth with the acquired goods.
The faster you can level heroes, the more efficient your farming is. Higher-level maps and special event stages provide more EXP per round, reducing the time it takes to get your fodders to level 30.
4.5 Personal Fodder Management Styles
Fodder Quality Management
- 3-Star Fodder: Reserve a significant portion for weekly Rare hero crafting, powering up 5-star heroes, and fusion processes. Primary sources include Alice's Shop, Infinite Tower, expedition rewards, and Adventure mode (particularly Nightmare stages).
- 2-Star Fodder: Primarily allocate to powering up 4-star heroes. These can also be used for fusions when necessary. These typically drop from Adventure and Nightmare modes.
- 4-Star Fodder: Dedicate to powering up 6-star heroes.
- Trash 4-Star Heroes: Utilize for powering up 6-star heroes or fusion to obtain 5-star heroes.
Strategic fodder management is crucial for long-term account growth. Different star ranks serve specific purposes in your progression, so maintaining a balanced approach ensures you always have the right fodder available for your current needs.
Conclusion & Key Takeaways
- The Goal is Level 30: Remember, every unique hero you get to level 30 nets you 20 rubies. This is the engine of your ruby economy.
- Maximize Key Sources: Collect from all available sources - natural regeneration, guild activities, daily missions, event rewards, and Alice's Shop - before making purchases.
- Use a Dedicated Farmer: Set up your team with one strong farmer from the list above and fill the rest of the slots with fodders. Consider dual farmers for Nightmare mode efficiency.
- Prioritize 50-Ruby Packs: Always buy the cheaper "Initial Key Packs" first, and consider bundle purchases from Alice's Shop for additional profits.
- Climb to Area 14: Your main goal should be to build your team to farm Area 14+ efficiently. This is where ruby farming becomes most profitable.
- Optimize Auto Farming: Configure battle settings, hero management, and skill priorities properly to ensure continuous, efficient farming cycles.
- Strategic Fodder Management: Maintain diverse fodder stocks and allocate different star ranks appropriately for crafting, powering up, and fusion processes.
Final Strategy: Ruby farming success depends on combining efficient farming techniques with smart resource management. Whether you're F2P or a light spender, consistent application of these strategies will build a strong foundation for your account's long-term growth and success.