The treasure room was filled with gold, jewellery and weapons. We were looking around when a giant shard made of diamond pierced through Asta's stomach. Mimosa starts healing him with my help and we all turn around to see that the enemy from before.
The enemy was using flame magic to heal himself. Klaus said In surprise "That's flame magic how can one person use two different magics when they don't have magic like copy magic that should be impossible ". The enemy says "Diamond magic, diamond golem" and creates a diamond golem which he controls and attacks Klaus. Klaus is sent flying and Asta gets up on his feet.
Yuno and Asta attack the golem while myself and Mimosa heal Klaus who is fatally injured just like Asta. Noelle protects us with her water barrier The enemy pushes them both away and sends them flying through a wall. I left the healing part to Mimosa and went to defend against the attack directed towards the shield.
Before I could do something, Asta attacks the golem with his newly acquired sword. Noelle thanks Asta and his sword lights up blue. When Asta slashes using the sword a slash made of water element attacks the enemy. The enemy was shocked and it slashed him directly. When Asta asked Noelle if she is alright the enemy sneaks up on him and tries to land a punch but this time I used my scorching sun to burn down his golem.
The enemy gets up again but this time he cannot heal himself after being hit by the slash made by Asta but still uses his diamond magic and captures Luck, Klaus and Yuno at the same time. But it was all stopped and he was sent flying fatally injured by Yuno. The enemy tells us to kill him but Asta talks with him for some time and he changed his mind. The enemy gets saved by an old man and uses his smoke magic to escape. All we learnt was that his name is Mars.
We asked Yuno how he defeated Mars but Yuno didn't know how himself. Apparently, when Asta and Yuno were sent flying through the walls Asta found a sword stuck in the ground and Yuno found some kind of parchment that attached his grimoire and unlocked a new spell. Yuno said he saw a little kid appear out of nowhere and defeated Mars and he didn't know how to control it or what it is.
I asked Yuno to show me the parchment that was attached to his grimoire and copied it. Now I acquired spirit magic. I said to Yuno his new spell might be some kind of spirit magic and the little kid might be his wind spirit. Yuno asked me how I know this and I replied "I copied your new spell and when I did I learnt about the wind spirit ".
Before anyone could reply the dungeon started collapsing. Klaus created his steel carriage and Yuno boosted its speed with my help. But the one on the carriage isn't the real me. I used my mana to create a doppelganger (clone) of myself and sent it with them. I used flame transformation magic and transformed into a rat all while they were freaking out when they saw the dungeon is going to collapse.
I used spatial magic to store all the treasures inside an endless inventory. I didn't have much time so I created many clones and scattered them all around the treasure room. They got all the treasures inside the inventory. I wanted to see if there was anything else hidden in the dungeon. But the dungeon starts collapsing