# Mantris SR Cards & Elementary

## Introduction

SR cards are highly sought after by the CTA community because they have the ability to create the **most powerful card** in the corresponding collection, the **Elementary card**, through the fusion of alternative versions. For S02 - Mantris, the Elementary card is **Ríona, Metaverse Eater**, with a power of 745 at grade S.

SR cards also play an important role in the **attack/defense system** of Lands in [Arise](https://whitepaper.crosstheages.com/whitepaper/en/products/arise).

Standard SR cards are power cards between Rare and Ultra Rare that are only available through a **weekly airdrop** based on CTA token staking conditions in a **pool** or **mint pass**. All information regarding staking requirements is available directly on the [CTA Portal](https://crosstheages.com/portal/staking/information). Once the airdrop is complete, the cards will be available on the [secondary market](https://crosstheages.com/portal/marketplace/products/direction=asc\&orderBy=buy_quantity_with_fees\&rarities=SPECIAL_RARE\&researchQuery=\&tokenType=CARD).

## Collection SR S02 - Mantris

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