Card System Overview
Cards are special items that drop from monsters and can be inserted into slotted equipment to grant powerful bonuses. Cards are one of the most important gearing systems in Ragnarok Online — the right cards can double your damage, dramatically reduce incoming damage, or grant immunity to status effects.
How Cards Work
- Each piece of equipment has 0 to 4 card slots, visible as small squares in the item tooltip (e.g., a weapon listed as "Blade [3]" has 3 slots).
- To insert a card, double-click the card in your inventory, then select the equipment you want to slot it into.
- Once a card is inserted, it cannot be removed without special items or NPCs. The card and equipment are permanently combined.
- You can insert multiple copies of the same card into a multi-slot weapon. For example, two Hydra Cards in a weapon with 2 slots gives +40% damage to Demi-Human.
- Cards only work in their designated equipment type: weapon cards go in weapons, armor cards in armor, garment cards in garments, footgear cards in shoes, and accessory cards in accessories.
@whodrops Card Name in-game.
Card Prefixes and Suffixes
When you insert a card into equipment, the item name changes to include a prefix (for weapon/accessory cards) or suffix (for armor/garment/footgear cards). Stacking the same card adds a numeric prefix:
| Count | Prefix | Example |
|---|---|---|
| 1 card | (Card name) | Bloody Katana (1 Hydra Card) |
| 2 same cards | Double | Double Bloody Katana (2 Hydra Cards) |
| 3 same cards | Triple | Triple Bloody Katana (3 Hydra Cards) |
| 4 same cards | Quadruple | Quadruple Bloody Katana (4 Hydra Cards) |
Mixed combinations show each prefix in order, e.g., "Double Bloody Boned Katana" (2 Hydra + 1 Skeleton Worker).
Popular Weapon Cards
These are the most commonly used weapon cards for increasing your damage output. The best combination depends on what you are fighting.
| Card | Effect | Best For |
|---|---|---|
| Hydra Card | +20% damage to Demi-Human race | PvP, WoE, and any map with Demi-Human monsters |
| Skeleton Worker Card | +15% damage to Medium size, +5 ATK | Most monsters are Medium size — a versatile general-purpose card |
| Minorous Card | +15% damage to Large size | MVPs and bosses, which are almost always Large size |
| Desert Wolf Card | +15% damage to Small size, +5 ATK | Small monsters (many early/mid-game mobs) |
| Andre Card | +20 ATK | Budget universal damage card, good for low-ATK weapons |
| Vadon Card | +20% damage to Fire element | Fire-element monsters and maps |
| Drainliar Card | +20% damage to Water element | Water-element monsters and maps |
| Mandragora Card | +20% damage to Wind element | Wind-element monsters |
| Kaho Card | +20% damage to Earth element | Earth-element monsters |
| Strouf Card | +20% damage to Demon race | Demon-race monsters (common in dungeons) |
| Goblin Card | +20% damage to Brute race | Animal/Brute-race monsters |
| Magnolia Card | +20% damage to Insect race | Insect-race monsters |
Popular Armor Cards
Armor cards focus on survival — reducing incoming damage, boosting HP, or granting status immunities.
Body Armor Cards
| Card | Effect | Notes |
|---|---|---|
| Pupa Card | +700 Max HP | Budget HP card, good for early-game survivability. |
| Pecopeco Card | +10% Max HP | Percentage-based HP, scales much better than Pupa at higher levels. |
| Marc Card | Freeze immunity, +5% tolerance to Water attacks | Essential for WoE and PvP to avoid being Frozen by Storm Gust. |
| Evil Druid Card | Armor becomes Undead Lv1, DEF +1 | Immune to Freeze and Stone Curse. Cannot be healed. Popular in WoE. |
| Ghostring Card | Armor becomes Ghost Lv1, -25% HP recovery | Reduces Neutral damage to 25%. One of the most valuable cards in the game. |
| Angeling Card | Armor becomes Holy Lv1 | Immune to Holy attacks. 125% from Shadow. High-value MVP card. |
| Bathory Card | Armor becomes Shadow Lv1 | Immune to Shadow attacks. Counters Shadow-element skills. |
| Pasana Card | Armor becomes Fire Lv1 | Useful in Fire-heavy dungeons (Magma Dungeon, Thor's Volcano). |
| Swordfish Card | Armor becomes Water Lv1 | Useful against Water attacks. Also grants Freeze immunity (Water armor). |
Garment (Manteau/Muffler) Cards
| Card | Effect | Notes |
|---|---|---|
| Raydric Card | -20% damage from Neutral attacks | The single best garment card for general use. Most attacks are Neutral. |
| Noxious Card | -10% from Neutral, -10% from ranged attacks | Alternative to Raydric for ranged matchups (Hunters, Snipers). |
| Whisper Card | +20 Flee, -50% from Ghost attacks | Good for Flee-based characters. The Ghost vulnerability is a downside. |
| Deviling Card | -50% from Neutral, +50% from all other elements | Powerful but risky. Amazing against Neutral-heavy enemies, dangerous against elemental attacks. |
Footgear (Shoes/Boots) Cards
| Card | Effect | Notes |
|---|---|---|
| Verit Card | +8% Max HP, +8% Max SP | Solid budget shoe card. Good HP and SP boost. |
| Matyr Card | +10% Max HP, AGI +1 | Better HP than Verit, with a minor AGI bonus. |
| Green Ferus Card | +10% Max HP, VIT +1 | HP boost with VIT bonus. Popular for tanking. |
| Moonlight Flower Card | Movement speed +25% (no speed penalty from weight) | MVP card. Movement speed is huge for farming efficiency. |
Accessory Cards
| Card | Effect | Notes |
|---|---|---|
| Zerom Card | DEX +3 | Budget DEX card. Useful for casters working toward 150 DEX. |
| Mantis Card | STR +3 | Budget STR card for melee classes. |
| Kukre Card | AGI +3 | Budget AGI card for ASPD/Flee builds. |
| Vitata Card | SP Recovery +20%, Heal effectiveness +10% | Popular for Priests and classes with SP problems. |
| Thara Frog Card | -30% damage from Demi-Human race | The most important PvP/WoE shield card. Goes in shields, not accessories. |
Refinement System
Refinement (also called upgrading or refining) increases the ATK of weapons and the DEF of armor. You can refine equipment by visiting a Refiner NPC in most major towns (look for the blacksmith-type NPCs).
How Refinement Works
- Each refinement level adds ATK bonus (for weapons) or DEF bonus (for armor).
- Refinement levels go from +0 to +10 (and beyond with special items, if available).
- Each refinement attempt requires Oridecon (for weapons Level 3 and 4), Elunium (for armor), or Phracon/Emveretarcon (for weapons Level 1 and 2).
- Refinements up to +4 are 100% safe. Beyond +4, there is a chance of failure.
- On failure, the equipment is destroyed (broken) along with any cards in it.
Refinement Success Rates
The following table shows the approximate success rates for each refinement level. These are the standard Pre-Renewal rates:
| Refine Level | Weapon Lv1 | Weapon Lv2 | Weapon Lv3 | Weapon Lv4 | Armor |
|---|---|---|---|---|---|
| +1 | 100% | 100% | 100% | 100% | 100% |
| +2 | 100% | 100% | 100% | 100% | 100% |
| +3 | 100% | 100% | 100% | 100% | 100% |
| +4 | 100% | 100% | 100% | 100% | 100% |
| +5 | 60% | 60% | 60% | 60% | 60% |
| +6 | 40% | 40% | 40% | 40% | 40% |
| +7 | 40% | 40% | 40% | 40% | 40% |
| +8 | 20% | 20% | 20% | 20% | 20% |
| +9 | 20% | 20% | 20% | 20% | 20% |
| +10 | 9% | 9% | 9% | 9% | 9% |
Note: These are approximate standard Pre-Renewal rates. BobaRO may have custom rates — check in-game or ask on Discord for the latest rates.
Safe Refine Limits
The safe refinement limit is +4 for all equipment types. Any refinement from +1 to +4 has a 100% success rate and zero risk. Beyond +4, every attempt can fail and destroy your equipment.
| Equipment Type | Safe Limit | Ore Used |
|---|---|---|
| Weapon Level 1 | +4 | Phracon |
| Weapon Level 2 | +4 | Emveretarcon |
| Weapon Level 3 | +4 | Oridecon |
| Weapon Level 4 | +4 | Oridecon |
| Armor | +4 | Elunium |
Over-Refine Bonuses
Refinement beyond the safe limit grants additional bonus ATK per level. The over-refine bonus depends on the weapon level and applies on top of the standard per-refine ATK:
Standard ATK Per Refine Level
| Weapon Level | ATK Per Refine | Over-Refine Bonus (per level above +4) |
|---|---|---|
| Level 1 | +2 ATK | +3 random ATK |
| Level 2 | +3 ATK | +5 random ATK |
| Level 3 | +5 ATK | +8 random ATK |
| Level 4 | +7 ATK | +14 random ATK |
The over-refine bonus is a random value between 0 and the listed amount, added to each hit. For example, a +7 Weapon Level 4 (3 levels above safe) would get up to 3 × 14 = 42 random bonus ATK per hit on top of the base +7 × 7 = 49 ATK from refine levels.
Armor DEF Per Refine
Each refine level on armor adds +1 hard DEF. A +10 armor adds 10 DEF. There is no additional over-refine bonus for armor — each level simply adds +1.
Refinement Tips
- Never refine equipment with expensive cards past +4 unless you are prepared to lose everything. If your weapon has a Turtle General Card worth millions, one failed refine destroys it all.
- Prepare duplicates. If you want a +7 weapon, buy or farm multiple copies and refine them all. Some will break — keep the ones that succeed.
- Do the math. Going from +4 to +7 means three 60%/40%/40% chances. The probability of getting all three: 60% × 40% × 40% = 9.6%. Expect to break roughly 9 out of 10 weapons.
- Consider the value. For cheap, easily replaced gear, refining past safe is worth attempting. For rare or expensive gear, stick to +4 or use safe refine options if available.
- Refine all gear to +4 immediately — it is free ATK/DEF with zero risk.
- For weapons you use in PvP or WoE, aim for +7 on replaceable weapons (no expensive cards). The ATK boost is significant.
- Card your "safe" (+4) gear and keep an un-carded copy for risky refinement attempts.
- Save your best cards for gear you do not plan to refine past +4, or wait until you successfully refine a clean copy first, then card it.
For more information on cards and their effects, browse the Card Database. For monster drop information including card drops, visit the Monster Database.