Item Synthesis

Item synthesis in Empire’s Battle is a core mechanic that allows players to upgrade their heroes’ equipment — weapons, armor, accessories, and boosters.

FEATURES:

▪️ There are 10 levels of synthesized items in total. The base level is 0 (available for all items by default). An item is considered synthesized starting from level 1 and is displayed in the inventory with a level indicator.

Synthesis Scheme 1 (same levels)

0+0 = lvl 1

1+1 = lvl 2

2+2 = lvl 3

3+3 = lvl 4

4+4 = lvl 5

5+5 = lvl 6

6+6 = lvl 7

7+7 = lvl 8

8+8 = lvl 9

9+9 = lvl 10

Synthesis Scheme 2 (one level lower)

0+0 = lvl 1

1+0 = lvl 2

2+1 = lvl 3

3+2 = lvl 4

4+3 = lvl 5

5+4 = lvl 6

6+5 = lvl 7

7+6 = lvl 8

8+7 = lvl 9

9+8 = lvl 10

▪️ Synthesis enhances an item’s attributes — energy, defense, attack power, dexterity and power — increasing its overall value and effectiveness.

▪️ The success rate of synthesis depends on the selected scheme, item level, and rarity: standard, uncommon, rare, epic, legendary, or limited.

▪️ If synthesis fails, one or both of the source items may be destroyed.

▪️ Limited items (for example, from the Legends of the Past set) are always synthesized successfully.

▪️ Synthesis time may range from several minutes to several hours.

‼️ With an active “Master” subscription, your chances rise significantly: the success rate of synthesis for any scheme and at any level increases by 5%, and the synthesis time is reduced to just 1 minute.

SYNTHESIS OF FIRST-CATEGORY ITEMS

Hero equipment items of rarity “S” are standard (gray).

Synthesis Time

▪️ Lv. 1–3: 5 min

▪️ Lv. 4–6: 10 min

▪️ Lv. 7–10: 15 min

Attribute Enhancement

▪️ Lv. 1–3: +15%

▪️ Lv. 4–6: +20%

▪️ Lv. 7–10: +25%

Probability of Item Destruction on Failed Synthesis

▪️ Lv. 1–3: one — 100%, two — 0%

▪️ Lv. 4–6: one — 75%, two — 25%

▪️ Lv. 7–10: one — 80%, two — 20%

Synthesis Success Rate

Scheme No. 1:

▪️ Lv. 1–3: 100%

▪️ Lv. 4–6: 80%

▪️ Lv. 7–10: 75%

Scheme No. 2:

▪️ Lv. 1–3: 75%

▪️ Lv. 4–6: 70%

▪️ Lv. 7–10: 65%

SYNTHESIS OF SECOND-CATEGORY ITEMS

Hero equipment items of rarity “U” are uncommon (green), and “R” are rare (blue).

Synthesis Time

▪️ Lv. 1–3: 10 min

▪️ Lv. 4–6: 20 min

▪️ Lv. 7–10: 30 min

Attribute Enhancement

▪️ Lv. 1–3: +25%

▪️ Lv. 4–6: +30%

▪️ Lv. 7–10: +35%

Probability of Item Destruction on Failed Synthesis

▪️ Lv. 1–3: one — 100%, two — 0%

▪️ Lv. 4–6: one — 80%, two — 20%

▪️ Lv. 7–10: one — 85%, two — 15%

Synthesis Success Rate

Scheme No. 1:

▪️ Lv. 1–3: 100%

▪️ Lv. 4–6: 85%

▪️ Lv. 7–10: 80%

Scheme No. 2:

▪️ Lv. 1–3: 80%

▪️ Lv. 4–6: 75%

▪️ Lv. 7–10: 70%

SYNTHESIS OF THIRD-CATEGORY ITEMS

Hero equipment items of rarity “E” are epic (purple), and “L” are legendary (orange).

Synthesis Time

▪️ Lv. 1–3: 30 min

▪️ Lv. 4–6: 60 min

▪️ Lv. 7–10: 90 min

Attribute Enhancement

▪️ Lv. 1–3: +35%

▪️ Lv. 4–6: +40%

▪️ Lv. 7–10: +45%

Probability of Item Destruction on Failed Synthesis

▪️ Lv. 1–3: one — 100%, two — 0%

▪️ Lv. 4–6: one — 85%, two — 15%

▪️ Lv. 7–10: one — 90%, two — 10%

Synthesis Success Rate

Scheme No. 1:

▪️ Lv. 1–3: 100%

▪️ Lv. 4–6: 90%

▪️ Lv. 7–10: 85%

Scheme No. 2:

▪️ Lv. 1–3: 85%

▪️ Lv. 4–6: 80%

▪️ Lv. 7–10: 75%

SYNTHESIS OF FOURTH-CATEGORY ITEMS

Hero equipment items of rarity “L” are legendary (orange) limited items with a restricted release (for example, the Legends of the Past set), while items of rarity “A” are artifact (red).

Synthesis Time

▪️ Lv. 1–3: 1 hour

▪️ Lv. 4–6: 2 hours

▪️ Lv. 7–10: 3 hours

Attribute Enhancement

▪️ Lv. 1–3: +35%

▪️ Lv. 4–6: +40%

▪️ Lv. 7–10: +45%

Probability of Item Destruction on Failed Synthesis

▪️ Lv. 1–3: one — 0%, two — 0%

▪️ Lv. 4–6: one — 0%, two — 0%

▪️ Lv. 7–10: one — 0%, two — 0%

Synthesis Success Rate

Scheme No. 1:

▪️ Lv. 1–3: 100%

▪️ Lv. 4–6: 100%

▪️ Lv. 7–10: 100%

Scheme No. 2:

▪️ Lv. 1–3: 100%

▪️ Lv. 4–6: 100%

▪️ Lv. 7–10: 100%