> For the complete documentation index, see [llms.txt](https://docs.nftduel.net/nft-duel/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nftduel.net/nft-duel/card/levels.md).

# Levels

<table><thead><tr><th width="133">Card Level</th><th width="122">Card Cost</th><th width="115">Attack</th><th width="113">Defense</th><th>Probability of inclusion (e.g.)</th></tr></thead><tbody><tr><td>1</td><td>1</td><td>10</td><td>10</td><td>70.00%</td></tr><tr><td>2</td><td>2</td><td>20</td><td>20</td><td>19.81%</td></tr><tr><td>3</td><td>3</td><td>30</td><td>30</td><td>4.67%</td></tr><tr><td>4</td><td>4</td><td>40</td><td>40</td><td>3.33%</td></tr><tr><td>5</td><td>5</td><td>50</td><td>50</td><td>1.33%</td></tr><tr><td>6</td><td>6</td><td>60</td><td>60</td><td>0.67%</td></tr><tr><td>7</td><td>7</td><td>70</td><td>70</td><td>0.19%</td></tr><tr><td>8</td><td>8</td><td>80</td><td>80</td><td>???</td></tr></tbody></table>

The higher the Level, The more expensive the card is and the more vital parameter it has. The higher Level cards also come with higher parameters on Attack and Defense.