> For the complete documentation index, see [llms.txt](https://chainofrealms.gitbook.io/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chainofrealms.gitbook.io/whitepaper/game-overview/basics.md).
# Basics
To participate in gameplay you need at least 1 card and 1 hero!
**Core concept:** choose the right hero, build a unique 6-card deck, add up to 4 different talents if possible, and battle your opponent. Both you and your opponent start with X health points (determined by your hero). The first player to reach 0 health loses! If the battle lasts more than 60 seconds, both players begin taking escalating damage every second until one of them wins.
Combat runs automatically — each card performs the actions described on it, either at a set time interval or when certain conditions are met. Talents and your hero complement your overall build and strengthen your deck.
Let's take the **Heal Spring** card as an example.
The frame tells us this is a Common rarity card.
It has the **Nature** attribute. Some cards or talents may depend on or interact with specific attributes. For example, this card boosts its healing effect by 10 if you have previously played any other card with the **Bodyguard** attribute.
The timer indicates how often the card activates. Every 6 seconds it will restore 15 (or 25) health to you.
*P.S. This example does not represent the final card mechanic — the mechanic and parameters may change.*
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://chainofrealms.gitbook.io/whitepaper/game-overview/basics.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.