Eisen grabbed a mana crystal and slowly started to decompress it so that it would turn to be three to four times the size it was before. And since the crystal was already the size of a soccer ball before then, that meant that it really turned rather large.
He started just enchanting it with a rather large array of different complex three-dimensional enchantments that Morrom actually seemed to be quite interested in. And then, Eisen moved on and took another crystal that he would later be placing into that larger crystal. He had a few smaller orbs made of specific gems and crystals to enhance the enchantments placed on each of them.