# Synthesis
## What is Hero Synthesis?
* You can upgrade your heroes to the next grade by combining them with heroes that have the same name and title.
* Synthesis is available when you have enough points and is not subject to random probability.
* Synthesized heroes will have the same title with an increased grade and improved stats.
## Select a Hero to Synthesize
* You can select a hero to upgrade via synthesis from the list on the right.
## Register Materials
* The registered hero is shown on the left side with the required points required to proceed with a synthesis to the next grade.
* The required materials can be hero cards with the same name and title and Crystals.
* You can use a mix of hero cards and Crystals to reach the required points.
{% tabs %}
{% tab title="1. Register Card as Material" %}
Hero cards with the same names and titles can be used as materials.
{% endtab %}
{% tab title="2. Register Crystal as Material" %}
Crystals can be used as materials.
{% endtab %}
{% tab title="3. Synthesis Points" %}
Adding cards as materials will fill the synthesis point gauge.\
Adding Crystals as materials will also fill the synthesis point gauge.\
You can use both cards and Crystals as materials at the same time.
{% endtab %}
{% tab title="4. Synthesize" %}
Once you have enough points, the button is activated.
{% endtab %}
{% endtabs %}
## Synthesis Points
* Different materials and card grades offer differing amounts of synthesis points.
| Material | Synthesis Points |
| -------- | ---------------- |
| Crystal | 1 |
| Common | 100 |
| Uncommon | 1,100 |
| Rare | 12,100 |
| Epic | 133,100 |
* Synthesis is only available when you have all the points required for synthesis.
* You can reduce the necessary points by up to 20% as an NFT benefit.
| Synthesis | Required Points | 20% Savings Applied |
| ----------------- | --------------- | ------------------- |
| Common > Uncommon | 1,000 | 800 |
| Uncommon > Rare | 11,000 | 8,800 |
| Rare > Epic | 121,000 | 96,800 |
| Epic > Legendary | 1,331,000 | 1,064,800 |
## Synthesis Results
* You can acquire a higher-grade hero once synthesis is complete.
* The background color will change and the number of stars will increase after the grade is increased.
{% hint style="warning" %}
#### This document was updated on March 16, 2023. Some elements may differ from the game.
{% endhint %}
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